So 1 found an apastasia... again. last one was on powerhead so I could remove it to kill the thing. This one is on a rock that I really can't move easily. I tried the boiling water which I squirted in its mouth, it looked like it shriveled up good but came back a day later. I really don't want to use chemicals at this point. I have heard people use lemon juice or vinager. What are the proper ways to use and will it harm anything since it would need to be done in tank? Thanks in advance.


