So, plans to have zoa's, possibly GSP on the walls of the tank. Everything else is kind of up in the air honestly I just know I like the sorta multi-colored look of zoas, and I like the idea of an Anemone in the tank. But the tanks only a 20 gallon tank so I kind of wonder if they might just get a bit too large for the tank. Whats your thoughts on them in smaller tanks?