is 10ML p gallon of H2O2 too much?

[SUPERBABY]

What is the right concentration to use in a rez? (3%)

 

[mrdizzle]

I know the side of my 29% bottle says 3ml per gal. I use around that without any issuse

 

[billybadazz]

I use food grade 35% and I have been taught to never use more than 2.5 ml a gallon in your res and always use gloves unless you like bleach white hands. I use 1.5 ml a gallon for maintenance once a week and 2.5 when a problem like pythium occurrs. hope that helps.