i saw these guys at my lfs and im thinkin about buying some, but i dont no if i could keep them. i have a 20 gallon that has a longfin calico bn pleco pair, some kuhli loaches, a peacock gudgeon pair, and some threadfin rainows. i have another tank that is a 10 gallon with nothing really in it, i use it to raise fish fry. would they be able to go in any of my tanks. i am most worried about the kuhlis and plecos. thanks