Hi there, I was at the shops and went by the Fluval EDGE Aquarium 23L tank then took interest in it. The tank looks nice for my office but I was wondering if it'll be alright since the tank's design is to fill the water to the top to give it a 3D effect. The tank has a hole for the filter's current and light only underneath it's hood. But since betta fishes come up to breathe air, will this tank be alright because that hole is where the water returns back into the tank.
To sum it up, my question is. Is this tank ok for betta fishes and can betta fishes survive without coming up for air since they have gills?
I've linked images to show you what the tank looks like what it looks like once the hood has been taken off.
The tank's design
This is what it looks like when the top hood is taken off. The only space where the betta can breathe but it's also where the water runs down as well.