My tank is becoming cleaner every day. Much less melting and more growth. I have 10 Neo reds and 3 Amano shrimp on the tank for about 10 days. I only feed using a fish and remove uneaten food. I will continue with maintenance and investigate forum threads. I would prefer to control numbers and not resort to chemical treatments. Will fish eat them? I am due to receive a Betta next week.Not a big issue, though a little unsightly. Plenty of useful threads on here about control. If your maintenance is good, their numbers will be limited I suspect.
There are parasitic flatworms, but they live inside the bodies of their hosts, very unikely to be seen crawling around.but I think they are natural parasites