| Red Planaria are a royal pain in the neck. They reproduce through fission and are toxic if they spread and die out in large numbers.
That's why I recommended siphoning them. Even the instructions to Flatworm Exit recommend siphoning as many as possible prior to using their product.
We had a huge outbreak of them in St. Louis earlier in the year. I didn't buy a coral for quite some time as a result. If you have them, siphon, siphon, siphon. Then do some waterchanges. If necessary, use a chemical killer like flatworm exit.
They are nasty little buggers. |