Yeah, the law is very obscure, to say the least.

An 18 cube would be ok, but an 18x18x24 would be a bit better if you can swing it. Once you add drainage and substrate, that 18h will be more like 12h. And it will give you a bit more room for a tank mate. I wouldn't put more than 2 in an 18x18x whatever height.


Education is the most powerful weapon we can use to change the world ~ Nelson Mandela