What is this????

[Gareth elliott]

Used in this out of tank manner, and using careful application with an eye dropper avoiding corals you will be fine . Weather it will kill the caulerpa is an unknown though. Negative effects of H202 have been when used in tank, or applying too liberally and getting it on the corals themselves

 

[oceaninabox12345]

Thank you all for the help! It is all gone, and im going to be getting a rabbitfish eventually so if it ever does pop back up, it will hopefully be eaten before its an issue. First pick is after, second is before