Editor's Choice - Our Favorite Alfie Aquarium Décor Tank Dividers
1. 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
(147 Points)

Peoples Choice - Other Highly Rated Alfie Aquarium Décor Tank Dividers
2. Alfie Pet - Rickie Hang-on Nursery Fish Tank with Isolation Breeding Hatchery
User Ratings: 51 21
Alfie First Impressions
"Works well."I got this so I could put two male bettas in a tank. I did have to bury the bottom in about an inch or so of gravel to keep it in place. I uploaded a video to demonstrate the barrier in action xD. This fit PERFECTLY in our 75 gallon aquarium. I did have to bury the bottom in about an inch or so of gravel to keep it in place. Very sturdy, has clips on the sides to keep in place. Make sure it is tight and smooth on the sides of the tank.
- Alfie Pet - Rickie Hang-on Nursery Fish Tank with Isolation Breeding Hatchery
- Measures 8"L x 4"W x 4"H.
- These long-lasting and beautiful ornaments are made of fade-resistant and non-toxic material. Safe for aquatic life.
- Your fish will love them, these aquarium ornaments enhance visual appeal and provide ample shelter for your fish to swim and hide.
- Use these ornaments to create a beautiful undersea world and spark your imagination.
- Easy to clean and suitable for both salt and fresh water.
- Manufacture: Alfie
- Editor's Impressions Of The Alfie
- Quality [star rating='3.3']
- Value For Money [star rating='3.4']
- Affordability [star rating='3.2']
Alfie Final Thoughts
"Suctions not included."You do have to assemble it yourself but that isn't too hard. Product works great if you can figure out how to fit it into your fish tank. Two were forced to spend most of their time in hiding. So I divided it allowing me to have 2 tanks in one large tank. It comes in clear so I had to rough up both sides to make it opaque. 6-25-19- I had to make a minor adjustment to my divider. I created an inexpensive portable indoor potty for my little dog.
Overall Score
3.9
(5 Points)

3. Alfie Pet - Rishi Aquarium Fish Tank Acrylic Divider Isolation Board (Suction Cup Included)
User Ratings: 50
Alfie First Impressions
"Easy to put in tank."I'm separating male and female cichlids. I know Betta fish are aggressive, so they must be separated. Description says if they dont go together use zip ties. Very good divider for my 20 gal long freshwater aquarium. This fit PERFECTLY in our 75 gallon aquarium. It dose have good flow between the tanks. It keeps the boys from being able to see each other.
- Alfie Pet - Rishi Aquarium Fish Tank Acrylic Divider Isolation Board (Suction Cup Included)
- Measures 10.25-12"L x 11.25"H. The holes are 5mm
- Those holes are 5mm wide.
- Made of high-quality acrylic material, providing a good space for the fish.
- Transparent design and advanced environmental protection materials to provide sufficient protection for your fish safety.
- We have covered the product with a white protective film, please remove it before use.
- Manufacture: Alfie
- Editor's Impressions Of The Alfie
- Quality [star rating='4.5']
- Value For Money [star rating='4.5']
- Affordability [star rating='4.8']
Alfie Final Thoughts
"I tried and tried."It is a bit tricky to straighten it and clip it, but with a bit of a push, it's fine. Would recommend two smaller filters on either side to help water flow. Even though there are holes in the acrylic the water flow is not the same. It worked well for me and I would highly recommend it to anyone. I mean, it's an aquarium divider lol. 4stars because it says easy to connect peices together. I came back to give it a 4 star review!
Overall Score
4.0
(2 Points)

Here Are Some Other Related Aquarium Décor Tank Dividers
4. Ujuuu 4 Pieces Fish Tank Divider 11.8Inchx 5.9Inch Fish Tank Bottom Filter Grid Suitable for for Bra...
Ujuuu First Impressions
"They are plastic grids."I've bought several of these to divide my betta's and they've been great! Even though there are holes in the acrylic the water flow is not the same. Would recommend two smaller filters on either side to help water flow. There are slots along the top that they can see through. Didn't ruin the look of the tank nor interfere with tank filter system. I had an oddly aggressive Molly and this worked great for the time I needed to use. No matter what size betta I put I know it won't go through the divider.
- Ujuuu 4 Pieces Fish Tank Divider 11.8Inchx 5.9Inch Fish Tank Bottom Filter Grid Suitable for for Brackish Water Grid Tank Divider Tray for Mixed Breeding
- Simple Installation: Just put one on top of the other and push down to slide the male buckle into the female buckle. You cannot push horizontally.If you cannot connect these grids together,it is recommended to use cable ties.
- Function: Use this divider to prevent them from biting each other and effectively separate the fish. Improve the survival rate of juvenile fish, isolate diseased fish and aggressive fish.
- Package Includes: 4 pieces white grid dividers, you can easily divide your fish tank into several compartments, these divider holders are used for reproduction or separation.
- Dimension: 11.8 inches x 5.9 inches / 30 cm x 15 cm.
- Multifunctional Divider: The fish tank divider can be used to separate a fish that has started to become too aggressive, raise the rock in the waterscape to a datum level in the aquarium, make a turtle ramp for your turtle habitat, or do some In other diy projects, the use of partitions has unlimited possibilities.
- Manufacture: Aika Designs
- Item Weight: 6.9 ounces
- Editor's Impressions Of The Ujuuu
- Quality [star rating='2.3']
- Value For Money [star rating='2.9']
- Affordability [star rating='3.5']
Ujuuu Final Thoughts
"3-gallon tanks."I also found out small fish can easily swim between the gaps on the sides. It keeps the boys from being able to see each other. You can customize the to whichever size you like and the suctions are great. The only con is that it's see through. However, keep in mind this tank divider does not fit just ANY 10 gallon! So if you have the exact tank, it would be perfect. Third- pull the divider all the way up.
Overall Score
3.0
(1 Points)

5. Kayueti 4 Pcs Grid Divider Tray Egg Crate Louvre Aquarium Fish Tank Bottom Isolation
User Ratings: 73 5
Aliyaduo First Impressions
"Easy to put in tank."I'm not using it but keeping it in case. I got this to keep my albino Koi guppies separated from my fancy males. This WILL fit an Aqueon tall 10 gallon, but NOT a Top Fin tall 10 gallon. It worked well in my very small 12 gallon show tank. I'm not using it but keeping it in case. You can also cut it down to the size of your tank, which was not too difficult to do. You can also try any other small fish.
- Kayueti 4 Pcs Grid Divider Tray Egg Crate Louvre Aquarium Fish Tank Bottom Isolation
- Manufacture: Kayueti
- Product Dimensions: 11.81 x 5.91 x 0.31 inches; 6.88 Ounces
- Editor's Impressions Of The Aliyaduo
- Quality [star rating='4.1']
- Value For Money [star rating='5']
- Affordability [star rating='5']
Aliyaduo Final Thoughts
"The choice is yours!"For platty fry I reccomend the Petzilla Aquarium Fish Breeder box. Only because of that reviewer, I was able to use them the way I intended. I'm separating male and female cichlids. You just need to peel of the protective layer from both sides. That was another battle trying to get those on. This are black in they stick to the tank not like glue or anything lol. Description says if they dont go together use zip ties.
Overall Score
4.6
(37 Points)

6. spritool DIY Designed Clear Easy to Bent Cutting and Combined for Most Fish Tanks (Suction Cups are ...
User Ratings: 56 11
spritool First Impressions
"Love this seat cover."They can see each other but they can't fight. Would recommend two smaller filters on either side to help water flow. Im using them to hold airline tubing. This product is one that I would be really sad to see disappear. It is a bit tricky to straighten it and clip it, but with a bit of a push, it's fine. I actually like how tight it fits so it won't get dislocated accidentally. Giving it 4 stars due to the high price of something so simple.
- spritool DIY Designed Clear Easy to Bent Cutting and Combined for Most Fish Tanks (Suction Cups are not Included)
- 4 PCS /PKG
- Manufacture: Spritool
- Editor's Impressions Of The spritool
- Quality [star rating='4']
- Value For Money [star rating='4']
- Affordability [star rating='3.7']
spritool Final Thoughts
"Love this seat cover."The only con is that it's see through. Giving it 4 stars due to the high price of something so simple. Purchased this to temporarily divide a 20-long tank for axolotls. 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. Doing these two things really keeps this thing in place. It worked well in my very small 12 gallon show tank.
Overall Score
4.0
(182 Points)

7. uxcell Betta Fish Tank Aquarium Black Plastic Square Separation Board Isolation 4pcs
uxcell a17080700ux0707 First Impressions
"Go together easy."It comes in clear so I had to rough up both sides to make it opaque. Very pleased with this tank divider. Giving it 4 stars due to the high price of something so simple. Purchased this to temporarily divide a 20-long tank for axolotls. There are slots along the top that they can see through. Doesn't obstruct the look of my fish tank. The only con is that it's see through.
- uxcell Betta Fish Tank Aquarium Black Plastic Square Separation Board Isolation 4pcs
- Color: Black; Package Content: 4 x Aquarium Isolation Board
- Size: 30 x 30 x 0.7cm / 11.8" x 11.8" x 0.3" (L*W*H)
- Material: Plastic; Net Weight: 318g
- Used as a plate for bottom filtering, favorable water cycle.
- To separate aquatic fish for good protection and care.
- Manufacture: uxcell
- Editor's Impressions Of The uxcell a17080700ux0707
- Quality [star rating='5']
- Value For Money [star rating='4.2']
- Affordability [star rating='5']
uxcell a17080700ux0707 Final Thoughts
"Works pretty well."The holes are smaller than some other similar dividers, which is why I chose these. This is a great option for keeping two bettas in the same tank! Perfect fit, easy to install, and ideal design. I'm not using it but keeping it in case. I did have to bury the bottom in about an inch or so of gravel to keep it in place. It is thick, well made and a great addition if you have the tank they specified. The gravel along with the quick trim left no gaps for me.
Overall Score
5.0
(1 Points)

8. Ioffersuper 4 Pcs Grid Divider Tray Egg Crate Louvre Aquarium Fish Tank Bottom Isolation
User Ratings: 69 2
Ioffersuper First Impressions
"Excellent product!"Second- Do not recommend for bettas or small fish! It worked well in my very small 12 gallon show tank. Only because of that reviewer, I was able to use them the way I intended. If you have the divider in the gravel it will not meet the top of the tank. It was a bit too wide for my tank, so I cut it a bit and it's perfect. Only reason I took a star off was the price. Make sure you read the instructions and have the right type of aquarium!
- Ioffersuper 4 Pcs Grid Divider Tray Egg Crate Louvre Aquarium Fish Tank Bottom Isolation
- Size(Approx.):Square grid size is 10mm;The size of aquarium filter grids is 30*15cm/12*6inches.The tank filter grids can be freely spliced and cut by yourself, and the size can be determined according to your actual needs.
- High Quality Material:Our fish tank dividers and supporty feet are made of premium PC,safe and durable,non-toxic,no harm to your fishes and will not affect water quality.You can use it with confidence.Perfect accessories for aquarium tank.
- Wide Application:Our grid divider trays are perfect for all types of freshwater and saltwater aquarium.Effectively separate the fish and avoid bites each other; decorative support frame for easy cleaning of feces; turtle drying platform; controller storage rack.
- Isolation Function:Isolate fish,build platform,bottom filter.Aquarium divider can be used to separate different fishes, prevent fish from fighting.And can increase the survival rate of breeded fish by separating the aggressive fish and weak fish.
- Great Value Package:You will get 2 pieces white aquarium separation grids+2 pieces black aquarium separation grids.Can be used to isolate fish, build platforms, or use as a bottom filter.
- Manufacture: Ioffersuper
- Editor's Impressions Of The Ioffersuper
- Quality [star rating='4.5']
- Value For Money [star rating='3.5']
- Affordability [star rating='3.6']
Ioffersuper Final Thoughts
"Cut to fit snug."You can also try any other small fish. I found these and now have 6 of them for my male bettas. Fish can't swim to the other side anymore, and it looks super cool. I have it in a divided ten gallon with two bettas. They can still see each other and try to fight through the barrier but its a no go. Very few problems just a couple things to keep in mind when buying. I have to trim off about a quarter inch and then they work just fine.
Overall Score
4.4
(132 Points)

9. YG_Oline 5 Pcs Black Aquarium Divider Trays, Plastic Grid Isolate Board Divider, Durable Filter Grid...
User Ratings: 70
YG_Oline First Impressions
"Otherwise very good."And I've been in the hobby a long time! I can see why people thought it was white. The female is on the larger side with her babies. It was a bit too wide for my tank, so I cut it a bit and it's perfect. And since it has been working ok, I decided to change the review to 4 star. Don't think so, unless it’s not in water. It comes with MANY suction cups and attachments.
- YG_Oline 5 Pcs Black Aquarium Divider Trays, Plastic Grid Isolate Board Divider, Durable Filter Grid Segregation Board with 15 Pcs Black Sucker Clips for Fish Tank
- Size and Material: segregation board 11.8x6x0.25inch, grid size 0.39x0.39 inch, suction cup 2.6x2.2inch, fix for about 6mm thickness tray, they are all made of plastic material.
- Function: You can easily divide your fish tank into several compartments with these dividers. Use these dividers to separate different fish and breed, so you don’t have to worry about your aquarium fighting anymore
- Tip: When clamping your separating plate with suction cup, pay attention to the angle of jamming. First hold the plate at a 45-degree angle to the side of the plate, do not use brute force, and then slowly fix the remaining part.
- You can easily divide your fish tank into several compartments with these compartment holders. This plastic grid can be combined with cutting and free stitching
- Package Include: 5 packs Plastic Aquarium Divider Trays + 15 pieces Black Sucker Clips
- Manufacture: YG_Oline
- Editor's Impressions Of The YG_Oline
- Quality [star rating='4']
- Value For Money [star rating='4']
- Affordability [star rating='3.7']
YG_Oline Final Thoughts
"Made a shelf in my sump."I'm not using it but keeping it in case. Two were forced to spend most of their time in hiding. You do have to assemble it yourself but that isn't too hard. And I've been in the hobby a long time! I did have to bury the bottom in about an inch or so of gravel to keep it in place. You can also try any other small fish. Description says if they dont go together use zip ties.
Overall Score
4.7
(4 Points)

10. 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
(33 Points)
