Hi guys,
I have a 50 gallons reef with 90% SPS and I've been battling velonia algae and red turf algae for almost 1 year.
I have tried everything to reduce nutrients and nothing worked, so I decided to search for "alternative" methods.
All your reports about the use of peroxide made me want to try, so decided to go slowly and started first with some frag plugs, then with one small rock and then finally with all the rocks.
The method used in the first place was to take rocks out of water and spot treat with pure 3% solution (around the corals), leave it bubbling for 10 minutes and return the rocks back to the aquarium.
In a matter of 5 days every algae was white and my turbos all over it. After 15 days the rock was completely naked of both algae.No coral losses
The only thing that I did not treat was the turbo shells which became a mistake, because as they roam the rock eating the old dead algae were seeding with new one from the shells. 2 months passed and I've start to notice new spots growing
This may be a problem since if any spore remains in the water, sooner or later will spread again...
Before starting a new spot treatment I decided to try dosing the peroxide directly to the water in a rate from 1ml/gallons to 2ml/gallons with no side effect the fish/corals or effect to the new spots.Don't think that dosing to the water will ever do harm to algae in these small doses.
What I saw (and I really can't prove that was from the peroxide) was, since the moment that I dosed peroxide, a fast improve in the coralline algae growth and specially in SPS colors. Can anyone explain that? Could it be from the peroxide?