[michika]

I'm thinking perhaps this tank needs to be torn down and changed at this point. Things still aren't perking up regardless of what I've tried or done, sadly GHA seems the be the least of my worries right now.

Things I need to figure out how to address;
1) RTN its back! My large colony has RTNed, and two frags I picked up in January have died as well. Both frags were fine yesterday evening and gone this morning.

2) Mystery leak? or crazy evaporation. I am going through about 2g per day of water. While my SG remains constant (when I don't over top off), its a lot of water to be topping off. I'm concerned because of the quantity, however I don't see any negative/positive influences because of this.

3) GHA which is a problem in and of itself. I don't want to discuss it as I feel like I've spoken about it ad nausem.

4) Getting things to thrive and not just live. I've seen a color change in one of my frags, but I have seen no growth, not even nubs on anything else. Birdsnest and digitata has always been a quick grower for me, and nothing is growing.

These are today's parameters; they are also prior to today's water change
SG: 1.023 (low, I want 1.025)
pH: 8.1 (before lights on, same as lights on though)
Ca: 370
Mg: 1170
dKH: 5 (low)
Phos: 0.04 (its going up since last week's 0.01).
Nitrate: 1ppm (stayed the same from last week).
Nitrite: 0
Amm: 0
temp: 80.4

On a positive note though the cyano has disappeared, its only one one patch of zoas, and even then it seems to be receeding slowly. I did try to start dosing Energy Elements again, but I saw the return of cyano and immediately stopped dosing. The filter socks I purchased have also solved the microbubble problem, I'm really happy with this turn out, and gladly accept the trade off of cleaning them every other day. I'm looking into polyp labs right now as a potential solution to my tank's sad state. However, since I don't know what the problem is, I hesitate on how to fix anything. I also worry about constant dosing, I liked having a more or less hands free system. Should my upcoming changes not yeild any results by the end of the month I will be trying this. The bottom line is things aren't doing well. While my fish and clams thrive, nothing else (GHA aside) does, and I need to figure out how to fix this asap before the rest of my SPS die.

I think I will make a post in the reef section to solicite opinions on what else I can do. I am at such a loss and I'm very disapointed in how things are progressing. Depending on the responses I get, I will probably purchase polyp labs at the end of the month or early March and try that system. I will also try to do one major overhaul by removing all the rocks that have GHA and see what happens. Since I suspect the phosphates are being released by those old rocks, I'm going to try and remove them, and see if that solves the issue of GHA.

Photos later of before and after the changes as well as some of the RTN possibly.