The white may be planaria; Google that fo
rimages and see if that's what it looks like. The red I have no idea. Planaria are generally harmless but on smaller fish and shrimplets they might attach themselves (I could be mixing up my worms though lol). Is there left-over food and such in the breeder box? That tends to cause planaria. Try getting an airline tube and put one end in the breeder box and suck a little on the other end to create a siphon and suck out any leftover food/gunk from the box (check the bucket before you toss it to make sure no shrimplets are in there) then replace the water with water from the tank (does the tank itself have these too or just the breeder)? A few cleanings like that should start to help with the worms; reduce feedings too. If the red ones are large enough try removing them manually with tweezers maybe.