Will H202 harm Dwarf Four Leaf Clover when spot treating for BGA?


Lifetime Member
Lifetime Member
Jan 22, 2015
Mammoth Lakes, CA
I have a large amount of BGA on my Dwarf Four Leaf Clover and looking to use H202 to spot treat. Will the H202 harm the plants themselves?


Lifetime Members
Lifetime Member
Jan 10, 2010
Boca Raton, FL
Most plants aren't in the least affected by H2O2. Java fern and anubias petite, for example, I can remove and spray directly in the sink and let sit for 1/2 hour while cleaning tank and they are not the least bit affected. However, P. Erectus will melt if it gets anywhere near it. I try to keep it away from stem plants.

Try a small sample and wait a week.

A lot of algea will be killed by H2O2, but not all.

It works best to remove plant but not all can be removed. Take a look at Dave's video, I do this with c. parva:

I know its not the "answer", but for some plants, e.g., c. parva and anubia, it does real well.

CVS has a great 4oz spray bottle that can be refilled. Its great for spraying nozzles, powerheads, overflows, etc. when doing water change.
Last edited by a moderator: