So I am almost positive I have some hydroids popping up in my tank. What are some things people have done to get rid of them and are they bad for my tank.
Some may appear on corals and what not I’ve only had them on my glass but they just randomly go away on there own for the most part from what I’ve read. Mine went away
They are filter feeders. Starving them is key to reduction (not allowing food to get to them).
On glass, remove with old credit card and net them into toilet.
What kind of hydroids ? I had an outbreak of colonial hydroids that looked like little polyps. If got very bad and they didn't go away. It thats your type eliminate them now!