So I have been looking for a quarantine/ 3rd tank with a 4x4 footprint. I’m looking for something between 4x4x2 to 4x4x2.5. I didn’t know that those dimensions are near impossible but after scouring the globe I found one 15 minutes away from me but of course it’s rimless (4x4x2) So the question is is there anything I can do to keep stingrays, datnoids and Red tail cats in that tank? I know my arowanas gars are a no go. The best I can think of is lowering the water level 4 inches so they don’t slide over the top.
This is a picture of the tank in question. If I don’t go this route I will have to have one custom made which I would like avoid.

This is a picture of the tank in question. If I don’t go this route I will have to have one custom made which I would like avoid.




