I have 4 plecos in a 125gal.. three are babies and one is a common about 9 inches..the three babies are 2 clowns and one gold spot..i saw all four out and about today and they all looked good..but one clown baby seems to always be day or night on the intake pipe..just still.. do you think he may have fear issues since he is high up and never down with the rest..so i am concerned that he is either afraid or not eating.. and wasting away.. should i be concerned .. because i could take him out if that would be a suggestion...but do not want to if it is not nessasary since it is a big tank for him to roam and grow...and this just may be his normal behavior ..???