- Joined
- Feb 25, 2018
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I treated GHA with hydrogen peroxide — removed the most impacted rocks and physically removed and then dripped a 3% hydrogen peroxide solution in the areas. I don’t think I rinsed them effectively. This was about two weeks ago, and it was quite a lot: four large rocks and two small ones. Since then, corals have been slowly dying off. I’ve lost three colonies so far, and this one is bleaching now.
I’ve been doing continuous water changes at a rate of 15% per week. Alk changes by no more than .1 per day. Temp and salinity are constant. Nitrates and phosphates are unmeasurable.
I’ve also switched to a more blue spectrum from my AP700s and increased the PAR slowly over the last few days.
What should I do to try and narrow down the problem? Could it still be the hydrogen peroxide?
I’ve been doing continuous water changes at a rate of 15% per week. Alk changes by no more than .1 per day. Temp and salinity are constant. Nitrates and phosphates are unmeasurable.
I’ve also switched to a more blue spectrum from my AP700s and increased the PAR slowly over the last few days.
What should I do to try and narrow down the problem? Could it still be the hydrogen peroxide?