I have a 10 gallon IM Fusion...lots of live rock...doing well...the fish are 2 ymg, 1 purple ff, a tail spot ready to go from QT to DT...was thinking one more fish...a lined possum wrasse...is this one too many considering the size of the fish and size of the tank?...or do you think this OK considering the temperament of the fish...I'm good at keeping nutrients down,etc, but is this one too many...like to hear opinions...Thanks