[Carrera75]

Originally Posted by Aquattro

I used GE II on my tank and have had no issues at all. I did let it cure longer, but 48 hours should be more than enough time to seal it chemically.

Originally Posted by Aquattro

However, this was over a year ago, so if the formula changed, you might be affected by it. Last year your buddy was right, GE II "was" reef safe...

I got an email from GE and they said that it's not safe. Here is what Matthew Brown from GE had to say and I hope this helps other reefers to choose their silicone wisely in the future.

"Daniel,

Thanks for your email and I am sorry to hear about what happened. The Silicone II has a mold and mildew inhibitator in it and will never go away. Unfortunately, as long as the silicone II is in the tank, you run the risk of it killing the reef, etc. We would recommend removing all of the silicone to keep from that happening.

Matthew Brown
Customer Service Rep.
P - 877.943.7325
F - 304.746.1654"

Originally Posted by asmodeus

Wow man I'm so sorry to hear about this. Your tank was so flourishing with life

The new one was 1000 times better than the Solana.

Originally Posted by Seamazter

Do like 5% water changes every 2 days, and use alot of carbon.
This is a sad thing to see happen, if you cannot move your corals out of the tank try the advise above.

I have been doing 20% water changes every 12 hours and I am also running Purigen, ROWAphos and Kent Carbon.

Originally Posted by Lonster

I just used GE II about a month ago to build my new sump. I read there was issues when it was not left to cure long enough, I left mine for about 5 days until it didn't give off a smell anymore and have had no problems with it. There are two different types, one with mildew inhibitor and one without, I was told to make sure that I used the one without. Are you sure you used the one without the mildew inhibitors?

I guess you got lucky. I am glad that you didn't have any issues as I don't wish this to anybody.

Originally Posted by Mandosh

Both GE I and GE II have "kitchen & bath" (mildew inhibitors) and "window & door." The issue with GEII, from my understanding, is the fact that it is considered "neutral cure." It doesn't realease acids as it cures (so it doesn't stink like vinegar) and because of this it can leach substances (ammonia?) into the tank water for the first couple weeks.

I found this the hard way. Ammonia has been an issue since day one but it seems to be under control now. The plan is to take everything out to remove the silicone. I don't think I can do a few weeks of this, one week has been enough. I makes so sad to see corals that have been with me for several years slowly dying.