i've been doing it for awhile at the 1 mL per 10 gallons level for dinos. i haven't noticed anything bad really, i did lose a blasto and a torch, but my tank has been unhappy for a couple months now. shrimp wise they're fine (1 peppermint 1 fire shrimp) and inverts i haven't noticed any losses.
i want to say my chaeto has actually grown better lately? that's a hard one to quantify, though.
film on the glass seems a lot less, i've only had to clean the glass a couple times in the last couple weeks. didn't really have much hair algae or anything of that sort before.
oh and it hasn't been mentioned much but apparently h2o2 breaks down quickly due to flow and light. i haven't turned flow off, but i do dose it at night so at least the light isn't breaking it down quicker.
i want to say my chaeto has actually grown better lately? that's a hard one to quantify, though.
film on the glass seems a lot less, i've only had to clean the glass a couple times in the last couple weeks. didn't really have much hair algae or anything of that sort before.
oh and it hasn't been mentioned much but apparently h2o2 breaks down quickly due to flow and light. i haven't turned flow off, but i do dose it at night so at least the light isn't breaking it down quicker.