What now???

[Basssa]

My last post described my TERRIBLE Coral problem. Currently they are all on the brink of death.
I am trying to stabalize my tank, I have done 100% WATER CHANGE over the last 2 weeks. It is 75 gal, Arag bottom, Sump/skimmer, 440wVHO.
The PH is 7.9-8.0 ( I know this is low and I am working on it with buffer), Alk is 11.2 DKH, the calcium is EXTREMELY HIGH at 1118 ( HOW do I bring this down short of removing Aragonite? Sal is also high at 1.024-.025 (or is it?). I just removed the Nitrate sponge, because they are now nil, and replaced it with some carbon in the hope I can rid any toxicity in the tank.

I have tried many things short of pulling out my hair!

THANKS
BASSSA

 

[nala]

Are you sure your Ca is so high? With all those water changes it "should" be in range. Are you dosing the tank with something? I would stop dosing anything until your tank is back in check. If I was having so many problems with my tank...I would do another 40g(it would have to be large to dilute) WC with good RO/NSW water. I would increase the oxygen...especially the surface agitation. Along with the carbon I would run a Polyfilter just in case to see if it pulls anything(possible toxin?)out. Can you increase your skimmer?

 

[davelin315]

I don't think it's possible to boost your calcium up to the range you are speaking of, from what I have read on this board, and from what little knowledge I have about chemistry, if the other parameters are as you say, the calcium will precipitate out of the water. I would imagine that to get it as high as you are describing, you'd basically have to boil your water to dissolve more calcium in it. I would check your test kits out and see if they are the problems, maybe they're inaccurate and you've been fiddling around with your tank parameters trying to fix the problem and only exacerbated it by messing around based on an inaccurate test.