Sabwa respendens awesome fish! I tried keeping them in my warm high tech tank and they just starved themselves. There was a little too much heat and they lost weight and there was a little too much competition with tankmates. Keep an eye on those factors, IME, and you'll be good to go! That is very cheap- where'd you get them? I had to resort to PetSmart (yes, they had them there! MisID'd of course) and could only get males.
i bought them from FISH TOWN in ny.they used to be $3 each,after a month,they moved them into the 99 cent tank.so i bought all of them,.but not healthy.btw.what kind of rainbow are you breeding now?except parva.rainbow fish is my favorite.