Lee's AQ2 Aquarium Divider System for 10-Gallon Tanks

Fit in the tank perfectly, no gaps

Use this to separate my axolotls in a 40 breeder works great.

I had an oddly aggressive Molly and this worked great for the time I needed to use. I do find it annoying that you can really put the lid square on the fish tank while the brackets are attached.Make sure it is tight and smooth on the sides of the tank... I had a stupid fish that nearly died because it wedged its self in between the edge of the screen and the glass and couldn't hardly move.

Works well on my 10 Gallon Tetra tank. It is a bit too wide and I could have cut it but it works fine. Keeps the two bettas apart with no problem. Have been using it for 3 months now.

The divider itself works very well and seems sturdy. I have it in a divided ten gallon with two bettas. It is fine enough for the bettas to see and flare at each other without being able to nip each other's fins. You do have to assemble it yourself but that isn't too hard.My only small issue with it is the way it attaches to the tank. It uses two hooks/clamps that go over the front and back edges of the tank, which can make it difficult to get a lid on. You can fix this by punching small indents in your lid, but this is something to be aware of.Hope this helped!