hi guys.. i have a sps tank .. with some zoanths ... and i read alot and find out that every SPS tank most have a Wrasse Fish as a "Guardian Master" once they eat bugs and some others parasites... so now i maybe! find some red Bug on my tank ... like 2 ... or so... but just in case i wanna put one in order to protect the peace and stabilit of Non parasite So far*** .. my tank is a 30 gallon peninsula tank ... which wrasse are the best for plague control? thank you all in advance.