hmmm...ok. Do Ryukins do well with social changes?
For example, say i put them both in the planted 30g, the Ryukin proves to be too much of a bully or too big, so i take him and one of my fancies from my big tank swap places with them, with the ryukin in the big tank, and the other fancy in the ryukin's spot with the black moore.
so i guess what i am asking is, will the ryukin be missing the black moore that he grew up with? and ostracize himself from the goldie "community" in my other tank?