Hi. I have a 55g tank that has 5 adult 2 smaller dems with 3 adult yellows in it i was wondering if i added 5 1 1/2" dems to the tank would they do fine?
Yes - add more dems. If your yellow labs are really 5" adults, they may eat the young dems if they are too small. If you have lots of rock work, go for it.