will one more be ok?

[everl0ng]

right now i have my 37g perfecto column tank which measures 20lx20dx24h, and i have a 6line, perc, ywg, and a gcb, but i was wondering what fish i could get that would stay up towards the top, as i have the rest of the tank pretty much taken care of as the gobys hide/burrow, and the 6line is in/out of the rocks and the perc stahs in the front of the tank. would a pygmy angel or a cardinal or two be ok? oh, if anyone has any pics of this tank could you plase share! thank you so much in advance!!

 

[hammerswinger]

I would not add one more. Thats a pretty tall tank to oxygenate well.Although the clown goby is pretty small. If you do get one more watch the 6 line, they can be nasty if they have been there for a while. Ihave a fiji devil damsel in my 26 that swims middle to higher in the water above the reef. He was the last fish added and does not bother anyone (even the clown)