Editor's Choice - Our Favorite CoscosX Aquarium Décor Tank Dividers

1. CoscosX 50 Pcs 2 Ways Transparant Aquarium Air Valve Connectors Plastic Inline Splitter Pump Tubing ...

User Ratings: 67 6

CoscosX First Impressions

"What I expected."

The flow holes allowed for ample current and water circulation. First- When dividing a 10 gallon tank the flow is not the same. It dose have good flow between the tanks. This product is one that I would be really sad to see disappear. I did have to bury the bottom in about an inch or so of gravel to keep it in place. This fit PERFECTLY in our 75 gallon aquarium. The fry didn't understand so they swam through the sides.

  • CoscosX 50 Pcs 2 Ways Transparant Aquarium Air Valve Connectors Plastic Inline Splitter Pump Tubing Connectors Fish Tank Pond Air Line Connector for Fish Tank 4MM Airline Tube
  • SAFTY MATERIA:Aquarium Fish Tank Filter Bottom Isolation make by safe and environmental protection plastic,won't produce safe effect to aquatic animals box water quality
  • Size:30cmx15cm/11.8"*5.9"*0.3";Package includes:8 Pcs Fish Tank Filter Bottom Isolate Grid and 10 pcs sucker clip.You can easily divide your fish tank into several compartments with these divider holders for breeding or separation.
  • EASY TO USE:Grid divider can be cut and spliced,and the Clip can be fixed anywhere in the aquarium,making it more convenient to use
  • Using grid divider can effectively separate fish and prevent them from biting each other.Increasing the survival rate of baby fish,isolating diseased fish and aggressive fish.
  • Handy clips to divide a bigger fish tank into several compartment for breeding or separation.Suitable for:Isolate fish,build platform,bottom filter.
  • Manufacture: Dream-Wonderland
  • Editor's Impressions Of The CoscosX
  • Quality [star rating='3.6']
  • Value For Money [star rating='4.4']
  • Affordability [star rating='4.7']

CoscosX Final Thoughts

"Great product."

And I've been in the hobby a long time! I turn a 10-gallon tank into three, 3. So if you have the exact tank, it would be perfect. I cam keep my 2 betta fish in the same tank now. I had an oddly aggressive Molly and this worked great for the time I needed to use. Overall this has done the job I've needed to. A silicone tray, Charcoal potty pad, and this grid.

Overall Score
4.3

[star rating="4.3"]
(51 Points)

2. spritool DIY Designed Clear Easy to Bent Cut and Assemble for Most Fish Tanks (Suction Cups are Incl...

User Ratings: 49 15

spritool First Impressions

"Kept fish apart."

I got this to keep my albino Koi guppies separated from my fancy males. The product comes with many small plastic pieces. It was a bit too wide for my tank, so I cut it a bit and it's perfect. Works great and we have it holding a divider in a lizard tank. I did have to bury the bottom in about an inch or so of gravel to keep it in place. I would much rather be able to see my whole tank the rest of the day. The product comes with many small plastic pieces.

  • spritool DIY Designed Clear Easy to Bent Cut and Assemble for Most Fish Tanks (Suction Cups are Included)
  • Product size 11.8`` * 11.8`` (30CM*30CM), suitable for most standard or non-standard American fish tanks
  • Transparent partition design (with white protective film to be removed before use), can be bent, cut, assembled
  • After installation, you can easily separate the fish tank into the size you need, and we consider that it does not affect the aesthetics of your fish tank. We use transparent design and high-grade environmentally friendly materials to provide adequate protection for your fish safety.
  • We have a variety of sizes to choose from, and won't be affected because your tank size is not non-standard.
  • Advantage: Increasing The Survival Rate of Baby Fish,Isolating Diseased Fish And Aggressive Fish.
  • Manufacture: Spritool
  • Editor's Impressions Of The spritool
  • Quality [star rating='4']
  • Value For Money [star rating='3.5']
  • Affordability [star rating='4.3']

spritool Final Thoughts

"I love this!"

It assembled quickly and painlessly. And if you fill your tank very full with water they can swim over the divider. You will have to cut them to fit any other size aquarium. There are slots along the top that they can see through. I got this so I could put two male bettas in a tank. Description says if they dont go together use zip ties. Third- pull the divider all the way up.

Overall Score
3.9

[star rating="3.9"]
(52 Points)

3. Gelible Aquarium Fish Tank Acrylic Divider

User Ratings: 50 11

Gelible First Impressions

"Love this seat cover."

The holes are smaller than some other similar dividers, which is why I chose these. It was a bit too wide for my tank, so I cut it a bit and it's perfect. Overall this has done the job I've needed to. It is a thick sturdy plastic, and the suction power is strong. The female is on the larger side with her babies. It's good for what I needed it for. I have it in a divided ten gallon with two bettas.

  • Gelible Aquarium Fish Tank Acrylic Divider
  • ⭐Dimensions: 11.8'* 11.8'* 0.12 inches (30cm * 30cm * 3mm) suitable for most American fish tanks, packaging includes suction cups;
  • ⭐Good material: made of high-quality acrylic material, providing a good space for the fish;
  • ⭐Good hole arrangement: we provide appropriate hole structure and size (hole diameter: 5mm), the bottom defecation hole is 3mm;
  • ⭐Good environment: we use transparent design and advanced environmental protection materials to provide sufficient protection for your fish safety;
  • ⭐Note: We have covered the product with a white protective film, please remove it before use, and please pay attention to whether the size of your fish tank matches the size of the partition;
  • Manufacture: Gelible
  • Editor's Impressions Of The Gelible
  • Quality [star rating='3.6']
  • Value For Money [star rating='2.9']
  • Affordability [star rating='4.1']

Gelible Final Thoughts

"But it keeps adults in."

I got this so I could put two male bettas in a tank. It comes in clear so I had to rough up both sides to make it opaque. Im using them to hold airline tubing. So I divided it allowing me to have 2 tanks in one large tank. It keeps the boys from being able to see each other. However, keep in mind this tank divider does not fit just ANY 10 gallon! This product is one that I would be really sad to see disappear.

Overall Score
3.8

[star rating="3.8"]
(37 Points)

4. LANDUM 5Pieces Aquarium Fish Tank Divider Suction Cup Divider Plastic Sheet Holder Set White

User Ratings: 50

LANDUM First Impressions

"I highly recommend!"

It was a bit too wide for my tank, so I cut it a bit and it's perfect. It dose have good flow between the tanks. Holes are drilled evenly and it will divide fish 1. I'm separating male and female cichlids. There were scratches when we got this so I originally gave it one star review. I had an oddly aggressive Molly and this worked great for the time I needed to use. And if you fill your tank very full with water they can swim over the divider.

  • LANDUM 5Pieces Aquarium Fish Tank Divider Suction Cup Divider Plastic Sheet Holder Set White
  • Plastic + Rubber
  • ㊥Safe and Durable: made of plastic material, non-toxic,no harm to fish
  • ㊥Strong Suction: Firmly adheres to the fish tank wall, long service life
  • ㊥Trouble-tree Installation: Handy clips to divide a bigger fish tank into several compartment for breeding or separation
  • ㊥Protect Fish: Form two separate spaces to protect young and sick fish
  • ㊥Low Maintenance: Easy to clean and operate
  • Manufacture: LANDUM
  • Editor's Impressions Of The LANDUM
  • Quality [star rating='4.8']
  • Value For Money [star rating='5']
  • Affordability [star rating='4.5']

LANDUM Final Thoughts

"Very carefully machined."

It comes with MANY suction cups and attachments. This WILL fit an Aqueon tall 10 gallon, but NOT a Top Fin tall 10 gallon. I am going to put a Male betta on each side. You can also try any other small fish. Make sure to set it up in the middle of the water pump. A silicone tray, Charcoal potty pad, and this grid. Barrier is like a plastic mesh screen that allows water to flow through.

Overall Score
4.5

[star rating="4.5"]
(2 Points)

5. leyouyou520 4 Pcs Grid Divider Tray Egg Crate Aquarium Fish Tank Filter Bottom Isolate

User Ratings: 47 6

leyouyou520 First Impressions

"Very happy with purchase."

It was a bit too wide for my tank, so I cut it a bit and it's perfect. My dog can use her indoor potty and keep clean and dry above the pad. Divider works well for our two Bettas that share a 10 gallon aquarium. I did not receive suction cups but I had my own to it did what I was looking for. Not sure I would recommend it for fry however. And I've been in the hobby a long time! The female is on the larger side with her babies.

  • leyouyou520 4 Pcs Grid Divider Tray Egg Crate Aquarium Fish Tank Filter Bottom Isolate
  • Brand new and high quality
  • Material: Plastic
  • Color: Black
  • Size: 30cmx15cm/11.81*5.9 inch
  • Package includes: 4 Pcs Fish Tank Filter Bottom Isolate Grid
  • Manufacture: Leyouyou520
  • Editor's Impressions Of The leyouyou520
  • Quality [star rating='4.9']
  • Value For Money [star rating='4.4']
  • Affordability [star rating='3']

leyouyou520 Final Thoughts

"The choice is yours!"

And I've been in the hobby a long time! You will need fingernails to peel them. However, it was easy to install and it worked pretty well in the last few weeks. Doing these two things really keeps this thing in place. I got this so I could put two male bettas in a tank. I used this to separate my two Betta fish in a 10 gallon tank. They look like the edging that's on the tanks, so it's as attractive as possible.

Overall Score
4.0

[star rating="4"]
(39 Points)

6. WSERE 8 Pieces Fish Tank Divider, Plastic Grid Divider Aquarium Bottom Isolate Board Filter Tray Aqu...

User Ratings: 66

WSERE First Impressions

"The tank is only 7."

The female is on the larger side with her babies. This is THE BEST divider I've found! Description says if they dont go together use zip ties. There were scratches when we got this so I originally gave it one star review. Second- Do not recommend for bettas or small fish! I'm separating male and female cichlids. The gravel along with the quick trim left no gaps for me.

  • WSERE 8 Pieces Fish Tank Divider, Plastic Grid Divider Aquarium Bottom Isolate Board Filter Tray Aquarium Crate 4 Clear 4 Black
  • ★ The grid divider can effectively separate fish and prevent them from biting each other. Separations of different fish for breeding. Increasing the survival rate of baby fish, isolating diseased fish and aggressive fish.
  • ★ Made of food-grade plastic material, sturdy and firm, environmentally friendly, will not bend or snap over time, and won't affect water quality. 100% safe for your fishes.
  • ★ You can easily divide your tank into several compartments with these divider holders. This plastic grid can cropped and free splice combination.
  • ★ The grid isolate board size: 5.91 in x 11.81 in. Package includes 8 pieces grid dividers(4 black & 4 transparent white) . Easily to fix and move.
  • Manufacture: WSERE
  • Editor's Impressions Of The WSERE
  • Quality [star rating='5']
  • Value For Money [star rating='3.6']
  • Affordability [star rating='4.5']

WSERE Final Thoughts

"Sticks on glass."

For platty fry I reccomend the Petzilla Aquarium Fish Breeder box. The divider itself works very well and seems sturdy. Actually adds additional filtration I think. You just need to peel of the protective layer from both sides. Very few problems just a couple things to keep in mind when buying. I uploaded a video to demonstrate the barrier in action xD. Worth it though if you have money to blow.

Overall Score
4.4

[star rating="4.4"]
(33 Points)

7. Lifewithpets 10 Gallon Fish Tank Divider (2 Pack) Check Compatible Tank Below.

User Ratings: 61 13

Lifewithpets First Impressions

"The divider works well."

A silicone tray, Charcoal potty pad, and this grid. I found these and now have 6 of them for my male bettas. I cam keep my 2 betta fish in the same tank now. Make sure you read the instructions and have the right type of aquarium! Holes are drilled evenly and it will divide fish 1. It is a bit tricky to straighten it and clip it, but with a bit of a push, it's fine. 6-25-19- I had to make a minor adjustment to my divider.

  • Lifewithpets 10 Gallon Fish Tank Divider (2 Pack) Check Compatible Tank Below.
  • Compatible with Aqueon tank size 20.25"x10.5"x12.6" only. All 10 gallon tanks are NOT the same size. Please check tank size before buying.
  • Easy to install and maintain - No Suction Cups Required. An install video link is included on the instruction sheet.
  • Made from a solid, sturdy non toxic material.
  • Adjustable sidebars for the perfect fit
  • Not suitable for reptile tanks unless siliconed in place.
  • Manufacture: Gardner Creative Innovations Inc
  • Item Weight: 1.8 Pounds
  • Editor's Impressions Of The Lifewithpets
  • Quality [star rating='4.1']
  • Value For Money [star rating='3.9']
  • Affordability [star rating='3.8']

Lifewithpets Final Thoughts

"Love these!"

Only reason I took a star off was the price. You can also try any other small fish. Doesn't obstruct the look of my fish tank. We have four South American cichlids that do not live in harmony together. I also found out small fish can easily swim between the gaps on the sides. So I dont need the suction cups even though I'm glad I have them. I turn a 10-gallon tank into three, 3.

Overall Score
4.1

[star rating="4.1"]
(10 Points)

8. Alfie Pet - Comi Hang-on Nursery Fish Tank with Isolation Breeding Hatchery

User Ratings: 47 7

Alfie First Impressions

"I think these are great."

It is thick, well made and a great addition if you have the tank they specified. I would much rather be able to see my whole tank the rest of the day. It is easy to install but, careful not to lose anything. Perfect fit, easy to install, and ideal design. I'll keep it for separating parts of my tank as I plant new areas but not for fry. You can customize the to whichever size you like and the suctions are great. Not sure I would recommend it for fry however.

  • Alfie Pet - Comi Hang-on Nursery Fish Tank with Isolation Breeding Hatchery
  • This nursery fish case measures: 8" long; 4" wide and 4" high.
  • Ideal as maturation tank for fry, or isolation tank for aggressive or injured fish.
  • Removable center divider allows two fish to be safely isolated.
  • Space saving design that hangs on the inside of the aquarium.
  • Please remove the protection film before use.
  • Manufacture: Alfie
  • Product Dimensions: 11 x 5.7 x 1.6 inches; 3.2 Ounces
  • Editor's Impressions Of The Alfie
  • Quality [star rating='4.9']
  • Value For Money [star rating='4.2']
  • Affordability [star rating='4.6']

Alfie Final Thoughts

"Easy to put in tank."

Very pleased with this tank divider. Fish can't swim to the other side anymore, and it looks super cool. I got this to keep my albino Koi guppies separated from my fancy males. Easy to use and perfect for my tank! Don't think so, unless it’s not in water. I would much rather be able to see my whole tank the rest of the day. There are slots along the top that they can see through.

Overall Score
3.9

[star rating="3.9"]
(147 Points)

9. Kuerqi 1 Gallon Arylic Aquarium Kit Fish Tank with 6 LED Lighting and Tank Divider Filter for Starte...

Kuerqi First Impressions

"They really stick too."

Very pleased with this tank divider. This was clear, easy to install, and well made. I turn a 10-gallon tank into three, 3. The divider itself works very well and seems sturdy. My betta fish even got in fights 3 times because the went through them. Very tight fit with hardly any gap. Purchased this to temporarily divide a 20-long tank for axolotls.

  • Kuerqi 1 Gallon Arylic Aquarium Kit Fish Tank with 6 LED Lighting and Tank Divider Filter for Starter Beginners or Kids Children as Christmas Thanksgiving Gift and Room Decor
  • Brand New and high quality. Perfect for small fish.
  • Three-stage feeding is conducive to fry hatching, isolation disease fish, protecting the pups and other uses.
  • With 6 LED ceiling lights, divided into three blue and white, can freely adjust the lighting color.
  • Premium environment filtration, the activated carbon in the bubble head has the function of filtration water quality.
  • Removable design for easy cleaning. Size:(L)X(W)X(H)28 X 10 X 15cm /11.02'' X 3.94'' X 5.91"(appr.) . Power:requires 4 x 1.5V AAA batteries(not included)
  • Manufacture: Kuerqi
  • Item Weight: 1.34 Pounds
  • Editor's Impressions Of The Kuerqi
  • Quality [star rating='3.1']
  • Value For Money [star rating='3.8']
  • Affordability [star rating='3.4']

Kuerqi Final Thoughts

"And they connected!"

Very tight fit with hardly any gap. No it doesnt come with the suction cups. This fit PERFECTLY in our 75 gallon aquarium. It assembled quickly and painlessly. You do have to assemble it yourself but that isn't too hard. The holes are smaller than some other similar dividers, which is why I chose these. My male bettas could see each other along the top of the divider.

Overall Score
3.0

[star rating="3"]
(1 Points)

10. toyuto Aquarium Fish Tank Acrylic Divider 10/29/30/40/55/75/120 Gallon Isolation Board (Suction Cup ...

User Ratings: 57 15

toyuto First Impressions

"Had to go another way."

Take it from us— follow the instructions about what type to use! Easy to use and perfect for my tank! Would recommend two smaller filters on either side to help water flow. I would much rather be able to see my whole tank the rest of the day. I created an inexpensive portable indoor potty for my little dog. I have it in a divided ten gallon with two bettas. It's good for what I needed it for.

  • toyuto Aquarium Fish Tank Acrylic Divider 10/29/30/40/55/75/120 Gallon Isolation Board (Suction Cup No Included)
  • 11.5' x 11.5' 20 or 15 Gallon NOTE this is for Long 20 gallon tank
  • Easy maintenance, easy to clean, soft cloth scrub
  • perfect light transmission, up to 92%
  • Please Remove the White Plastic Paper on the surface.
  • Please -BUY SUCTION CUP SEPARATE- on our accessories part on the same listing /b>
  • Manufacture: toyuto
  • Editor's Impressions Of The toyuto
  • Quality [star rating='3.5']
  • Value For Money [star rating='3.2']
  • Affordability [star rating='4.1']

toyuto Final Thoughts

"The choice is yours!"

The first time we tried using this, we cracked an empty one. It was a bit too wide for my tank, so I cut it a bit and it's perfect. Actually adds additional filtration I think. It is thick, well made and a great addition if you have the tank they specified. There are slots along the top that they can see through. It worked well in my very small 12 gallon show tank. I bought these clear suction cups separately.

Overall Score
3.9

[star rating="3.9"]
(234 Points)

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