Aquarium Fish Tank Divider Isolation Board for Mixed Breeding Made by PET/PETP (11.811.8 inches)

I trimmed this item to size and made a nice drip plate for a wet-dry filter. I did need to make one hole larger to allow air to escape if the water flow was higher.

Worked great for keeping my 2 fish seperated

Clear plastic, but it comes with a film layer that needs to be removed. However, the film also makes the barrier more translucent than transparent, which is good when separating an aggressive fish. Feels sturdy, but still able to trim with a decent pair of scissors.

The media could not be loaded. This was very nice and clear in the beginning. It did not take long for the clear plastic to turn opaque.The main reason I took the divider out and gave three stars was, it does not have enough holes for water circulation.The suction cups took some effort to get them to stick.

Could not use because the installation screws and fasteners were not included in the shipment.

The product comes with many small plastic pieces. It is easy to install but, careful not to lose anything. It is a thick sturdy plastic, and the suction power is strong. I bought this product because I wanted to separate my female betta from my female danio when feeding because my danio is too fast and steals all the food. However, given the durability and sturdiness, it becomes an interesting task to remove. I personally only want to put the separator in for just feeding time. I would much rather be able to see my whole tank the rest of the day.That being said, this is a great product if you're looking to separate a big tank into two parts for a longer period of time, or to separate an aggressive fish from a timid one. Because of the durability, it does give some resistance when you want to section off a corner of your tank by bending it.The only issue that I had was that it is up to you how far or close the divider edges are away from the glass. My fish slipped through where the suction cup was, so make sure that the divider is right up against the glass of the tank.You can also cut it down to the size of your tank, which was not too difficult to do. Overall it did exactly as it advertised and I imagine it would be good for separating big fish because of how thick the plastic is. As a final thought, I believe it would be good to mention, if you have ever seen a danio, you know that they are really small; my danio could not fit through the holes in the separator. Not sure I would recommend it for fry however.

Got it to separate my axolotls until my baby gets the same size as my adult. So far it has worked perfectly and was actually quite easy to install. My tank is a 40 gallon breeder and the one I got that is the biggest was too big for it and had to be cut to size(so probably can be used for bigger aquariums too). Would not recommend as a way to keep a mature male and mature female from breeding though as there are holes in it that will allow the sperm comes to pass through to the other side. For that you'd want a separate tank or a solid wall to wall divider. Even if you kept the protective film on it there are still gaps where the divider suctions to the glass. I give 5 stars and will be recommending it to other axolotl owners. The last two pics are close ups of the two cuties.

The media could not be loaded. Love itOnly used suction cups to hold in place and gravel. Didn't use the little screws. Cut around filter