I had a fish in my 2.5 gallon tank for a short time and i fed it bloodworms. It did not eat all of them and they fell to the bottom, but i only fed 2-3 worms at a time so not a lot could have fallen, yet now i can see bloodworms poking out of the substrate everywhere. Does anyone know what to do about this. Also, do bloodworms grow into flies? Should i maybe just let some of my cories in the tank and let them eat the worms?