we are in the process of moving our comets to a larger tank. he's lost
3-4 scales from bumping around things in his now too small tank. will
they grow back?

Now that we have to get a larger tank, its location will have to be in
a place that sort of needs to be quiet. Have 2 comets going into a 20g
tank. I always do the regular water changes and skim off the obvious
stuff off the gravel. The noise of a filter may be a problem. Any
major problems not using a filter. I'm going to use a air stone.

thx - Craig