This little guy popped up in my tank recently, and I'm not sure what it is. There are a few actually, red, green, and orange so far. I first noticed one when I found it stuckto the front of the tank. After looking a bit more I noticed the others, Will they harm anything? How could I control them if need be? The pictures are the best I could get for the moment. They look something like mini anemones, with very thin, long tenacles coming from a very small main body. These little goobers are only about an inch from tip to tip.
Green Hydra Thingy
Red Hydra Thingy
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