I don't just phosguard... But why do you ask someone had suggested I try gfo and I was considering it
I started using GFO with my tank while I had some sps in there. Next thing I know they are browned out and algae was eating away at it because of the hit the GFO put on it.
I highly doubt that 7 month of no maintenance resulted in no change in the water chemistry. There's a lot that we don't and can't test for in our tank water.
It's very hard to pin point the problem but I will say this though. My difficulty in keeping SPS went away when I started to religiously do weekly water changes. 10-15% is all I do a week. I use IO salt than is less than 40$ for a 200gallon box.
Run carbon 24/7 and replace it monthly to lessen the chemical warfare. GFO can kill if you're not careful but if you use it in small amount and replace them regularly, it can keep your phosphate to a very low level.
Again, things don't happen overnight. Usually, when things like this happen and you don't know what it is, it's most likely an accumulated issue and you will be able to fix one thing and see result the next day.
http://www.bostonreefers.org/forums/showthread.php?141598-Elos-160XL-in-the-House!/page9So you run IO as your salt and keep SPS ok? What are you doing for the calc and alk?
Yes they are 4 stage rodi systems on top off and water change. They both have carbon filters.
My difficulty in keeping SPS went away when I started to religiously do weekly water changes. 10-15% is all I do a week. I use IO salt than is less than 40$ for a 200gallon box.
Run carbon 24/7 and replace it monthly to lessen the chemical warfare..
Do you run carbon I didnt see it any where though I may have missed it..and if not do you run something else to take out toxins?