Viewing post #1786345 by kgl96

Is it possible?

I have 3 cacti which were all doing really well until I noticed lots of tiny bugs surrounding them - long story short I identified them as fungus gnats and their larvae have completely eaten the roots of one of my cacti. The other two are looking worse for wear I've repotted them and lots of forums advise the use of hydrogen peroxide to kill off any remaining larvae, but I can't seem to find any. Is there an alternative I can use, or anywhere in particular that would sell it? I've tried my local pharmacy but no luck.

Thanks in advance!