REEF FLATWORMS

Flatworms: There are several types of flatworms, and most are harmless. There is one pest species, however, that people commonly find in tanks, red flatworms, planaria. Red flatworms are small, usually less than ½ cm in length, and are a rusty red color. They are slightly elongated or hourglass in form, with a forked tail. Flatworms can reproduce rapidly, and red flatworms pose a threat to corals because in large numbers they can smother them and block light. There are a number of ways to get rid of flatworms. Some fish, such as six-line wrasses, and Blue Velvet nudibranches will eat them, and in-tank treatments such as Flatworm exit also seem to work.

I dont really like to use meds to get rid of parasites and unwanted critters. But in a smaller tank with fewer flatworms, what is a good fish to get rid of flatworms. Six line wrasses can get too big for tanks smaller than 30g, and blue velvets need a steady source of flatworms. I wouldnt want to get a fish then get rid of it when its job is done, I get too attached I guess.

Ya, the 6 line can get large, but they tend to grow slowly. I have had mine for over 2 years in a 30g tank, and he is still only 1-2 inches. He completly got rid of my worm infestation. Just get a small one, and know that at some point he may have to go years down the road if he gets too big

Ok, didnt realize how slowly they grew. And if it takes a few years to outgrow a 30g tank, I'll hopefully have something bigger and better by then anyways. Thanks supafreak