I have 1 little columbian zebra, lost 2 to the temp surge... seeing them and being able to get them out before they spoiled in the tank in miraculous because I hardly see them at all ever. I do want another pleco though, something that isn't so shy. The one as it is stays in the sunken titanic and I can only see him when I look into one of the holes... Any ideas of what I can start looking at? The tank is a 75 gallon planted.