No, I once had 5 baby plecs (under 5 inches) in a 55g and they hid just as much as they do now with only 2 in that tank. I have a L114 and L006 in that tank and a few others a going to go in soon and sometimes I can see the entire L006 but generally only see the tail of the L114. I also have a ton of good hiding places with lots of driftwood, lava (lace) rocks, and some other decorations. Anyway, hope this helps and good luck.