Urgent: don't know what happened!

Here is everything I changed on the tank:

1. I built a sump with acrylic and used GE 100% silicone glue and weld on #4 (Both of which i had read is okay to use)
2. I added a phosban (Right now is running phosguard but I will be putting Phosban in it)
3. I plumbed the tank with a 3/4" drain and a 1/2" return. Put together with pvc cement and was cured about 20 hours or so.
4. In the sump, which i had before, I have the chaeto, I have a poly filter pad (PF) and I have chemipure (CP) and purigen.
<a href="http://imgur.com/7fDPMwS"><img src="http://i.imgur.com/7fDPMwS.jpg?2" title="Hosted by imgur.com" /></a>
5. I am adding a protein skimmer friday when it comes in


The things that went wrong:

1. The ato siphoned a ton of water into the tank and dropped it to about 1.015-.18

Everything is closed up and unhappy... i really dont know what is stressing them out, fish seem fine and so does shrimp.

Just checked some levels not too long ago...

Nitrates: 1ppm
Phosphates: .03
cal: 390 ppm
Mag: 1200 ppm
temp: 79.5
sal: 1.025
 
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There appears to be a generous amount of silicone applied in the front left corner. Exactly how long did you let it cure?
 
There appears to be a generous amount of silicone applied in the front left corner. Exactly how long did you let it cure?

I did it in layers because there was a small crack because my cut wasnt perfect. but about a day to cure. could that be it?
 
Rapid salinity drops are stressful, but rapid rises worse. I've had ATO problems that knocked things down a bit, but always got it back up slowly over days.

Could be the silicone. I did a new sump a while back using GE 2 window/door and everything closed up and I lost a couple of hammer corals. Not sure if it was the silicone or too short a cure. Regardless , I ripped it out, used Aqueon silicone, let it cure for a week and everything slowly recovered except the hammers.
 
Probably good if it had most of a day to cure.

I would say the swing in sg did it. Problem was going back up just as fast as it went down. Going down by itself not so bad, happens when it rains. Going up via drip method as someone else said, not so bad. But they dont drastically drop the sg right before you do your drip method to bring it back up.

Also other things could have happened when your top off water unloaded. You dose anything through top off? i.e. vinegar, kalk etc? It could have also caused an alk swing too. most people use something in their ro water to maintain alk just so its not constantly dropping the alk in your tank when it fills your tank...

you also added phosban, where was your po4 prior and after? a big fast drop in po4 can also cause issues.
 
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Probably good if it had most of a day to cure.

I would say the swing in sg did it. Problem was going back up just as fast as it went down. Going down by itself not so bad, happens when it rains. Going up via drip method as someone else said, not so bad. But they dont drastically drop the sg right before you do your drip method to bring it back up.

Also other things could have happened when your top off water unloaded. You dose anything through top off? i.e. vinegar, kalk etc? It could have also caused an alk swing too. most people use something in their ro water to maintain alk just so its not constantly dropping the alk in your tank when it fills your tank...

you also added phosban, where was your po4 prior and after? a big fast drop in po4 can also cause issues.

Yeah I'm gonna say that's it cause I saw it dropped and immediately brought it back up.... And the ATO dropped it down in a matter of 10 minutes because of the siphon. The po4 was about the same. My nitrates are better than they ever have been. I don't add anything to my ATO water at all.... Well since it has happened I've done a few water changes to replace the bad water from the dead corals and in case anything bad is in there. I think it should work itself out I just really don't want to lose anything else... Especially the ones left because they have all attached themselves to rocks sooooo I would be done for. I think I will be fine though (I hope). Any advice towards maintenance or anything that could help straighten out the problem?
 
Rapid salinity drops are stressful, but rapid rises worse. I've had ATO problems that knocked things down a bit, but always got it back up slowly over days.

Could be the silicone. I did a new sump a while back using GE 2 window/door and everything closed up and I lost a couple of hammer corals. Not sure if it was the silicone or too short a cure. Regardless , I ripped it out, used Aqueon silicone, let it cure for a week and everything slowly recovered except the hammers.

I used the silicone I not II... The II has mold prevention things in it which has chemicals... The Silicone I I've read is very safe... So I feel like it's safe to say it's salinity because it dropped and I put it back up so so so fast.
 
I used the silicone I not II... The II has mold prevention things in it which has chemicals... The Silicone I I've read is very safe... So I feel like it's safe to say it's salinity because it dropped and I put it back up so so so fast.

Too many uninformed opinions running around on what is and what is not. As far as I can tell the only diff between GE I and II is that the former is an acetyl cure and the latter a neutral cure. The whole 'chemicals' thing appears to be urban legend. Chap I know who understands this stuff inside and out says problems usually arise from too short a cure time. He says not to submerge for at least 72 hours.

Anyhooo, probably was the salinity swings ... You'll know better next time.
 
Too many uninformed opinions running around on what is and what is not. As far as I can tell the only diff between GE I and II is that the former is an acetyl cure and the latter a neutral cure. The whole 'chemicals' thing appears to be urban legend. Chap I know who understands this stuff inside and out says problems usually arise from too short a cure time. He says not to submerge for at least 72 hours.

Anyhooo, probably was the salinity swings ... You'll know better next time.

100% agree with that... It's probably both so I'm doing my best to get that bad water out if there
 
A day is more than enough time to cure I do not think it is that.... Even 12 hours would have been enough.

okay, well what about the fact that its built of acrylic? Also, could vibrations cause things to be happy (just saying everything i can think of cause i can feel some vibrations)
 
Okay... Well what about the fact that it's an acrylic sump?

okay, well what about the fact that its built of acrylic? Also, could vibrations cause things to be happy (just saying everything i can think of cause i can feel some vibrations)

No Acrylic should be fine. Some people have entire tanks that are built out of acrylic so there should be no issues there.

Have you done anything different since the new addition? Have you added any new additives? Live rock in the sump maybe? Anything at all that would be new to the system?
 
No Acrylic should be fine. Some people have entire tanks that are built out of acrylic so there should be no issues there.

Have you done anything different since the new addition? Have you added any new additives? Live rock in the sump maybe? Anything at all that would be new to the system?

Well I havent added anything yet, i kept the same chemipure and purigen, and the same chaeto... I was going to add a little bit of live rock today... maybe i shouldn't? The only thing added was the phosban. I've done two waterchanges, both of about 2 gallons to make sure if anything bad was in there i could get it out. And i will keep doing some. So maybe they are just upset because i changed up the filtration..?
 
A day is more than enough time to cure I do not think it is that.... Even 12 hours would have been enough.

12 hours to cure inche thick silicone? Im not so sure about that.
I had someone looking after my tank and they had the ATO line submerged which siphoned and refilled my reservoir until both salinities matched at 1.020 SG and my sps and clam were mildly irritated but open and took no losses.
 
12 hours to cure inche thick silicone? Im not so sure about that.
I had someone looking after my tank and they had the ATO line submerged which siphoned and refilled my reservoir until both salinities matched at 1.020 SG and my sps and clam were mildly irritated but open and took no losses.

How do you figure it was 1-inch thick?

well I probably could have waited long to be safe but either way whats done is done, now its time to fix the problem lol
 
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