@Lionfish Lair please help me with these two IDs.. I have a 30 gallon with one thing and a 75 gallon which I just soaked some of my rocks in h202 that had a ton of algae on it and found these that you see in the cup.. I looked on your page but I want your opinion and what should I do to rid the ones in my 30 gallon. If they are hydroids that is.. first pic is 30 gallon and second pic is what came off my rocks from my 75 gallon.. minus the brittle stars of course

