hydrogen peroxide


New member
Hey Randy, and folks.

I have some hydrogen peroxide. As you know im dosing sugar.

If the fish appear to gasp at the surface, I may need to add some to replenish oxygen in an emergency situation.

I have a bottle that is 3% hydrogen peroxide.

Can I add 1ml of this? How effective is that dose to raise O2?


New member
NO!!!!!!!........don't add that to your tank.
i try hydrogen peroxide a year ago and........90 % of my coral is dying.......only 6 hours.

maybe i add hydrogen peroxide to much to my tank.