can i have more than 1 wrasse in a 46 gallon or are they territorial and may stress the other one out? i have a 6 line but i want to get a mystery wrasse or a melanurus wrasse.
The closer they are taxonomicly the more likely for aggression, a mystery is gruped with the "lined" wrasses and I've heard 6 lines are devils even though I had one that was a saint but I wudnt risk it, especially with a mystery
The size of the wrasse can play a part in your selection. If your 6-line is aggressive IMO the best thing to do is get a wrasse that is larger than the 6-line. The melanurus wrasse is a good one.