So Since moving to naptown I have been making a ton of changes on my tank- increased flow, increased skimming, increased the lighting a bit…
for about a month now I have wathced my sps bleach out or turn brown.
My theory is this- I had a large buildup of algea prior to my move. after the move it bloomed even more, but within a month was dying back quickly. my skimmer and cheto went nuts it seemed like things were on the up and up. more recently the remaining algea in the tank is turning brown and im assuming going through a final dieoff. even the cheto growth in my sump has slowed a bit. assuming that the dieoff was causing the bleaching/browning from nutrient release into the water I have started adheering to a stronger water change regiment of 10% a week. this is week three of water changes, but I have not seen any improvement on my sps.
The alternative possibility is due to increasing the total MH lighting time on the tank. I have been increasing the time by about 1hr every other week or so. its up to 3hrs a day and 4hrs of VHO( previosly all VHO), but I have been holding it at 3hrs for about a month now due to the bleaching…
What do you guys think? algea die off, too much light or something im missing here? any thoughts on a path forward appreciated!
E