Green Hair Algae fix

[Jay_R]

The peroxide idea interests me, how much would I use in a 90 gal. tank with a 30 gal. refugium, also should I use the 3% solution usually sold in stores? Thanx in advance

I personally wouldn't administer in the tank as peroxide doesn't just kill algae.. it kills everything on a bacterial level too.... I have personally treated rock that I purchased that had some existing algae, externally with a 50% Water / 50% 3% Peroxide solution in a spray bottle ( the kind used to mist your house plants ) and that did the trick.