Originally Posted by greenmaji
and do you know how much topoff water your going through water volume % wise.. I would assume that that wasn't it.. ions,
I do agree that it is probably not the topoff. It is back to 8.2 during light on and 8.1 during light off. I am still curious why occasionally, thing will just be out of the norm for no apparent reason, granted that this is a big tank that should have less flunctuation.
I did test
calcium = 370
Mag = 1200
Nitrate = 0
revhtree: My loss of the YT is nothing compare to your loss. Again, don't despair too much, your tank will be even better next time.
180g In Wall starboard reef, 100g Sump, 2 Tunze 6100, BL70 Return Pump, MR-2 Skimmer, 80lbs LR