Tank is crashing :(

[Frogger]

Originally Posted by iceman86

I was sitting at work this morning and thinking about this lol I then realized that I added a clown tang around that sane time the problems started happening. The tang was fat when I bought him, but slowly got skinnier and skinnier even though I was feeding him a ton to try to fatten him up. He ended up dying 2 weeks ago. Found his skeleton on the sand bed. All my other fish and tang are healthy and happy.
Could it be that this fish brought in a coral killing disease?

I am not aware of any disease problems that a fish can cause to your corals. I believe a large dead fish could cause a spike in your ammonia levels.

[iceman86]

Originally Posted by Frogger

I am not aware of any disease problems that a fish can cause to your corals. I believe a large dead fish could cause a spike in your ammonia levels.

I fed the fish the night before and that tang looked a little sluggish but still ate but next day after work I went to feed again and all that was left was his skeleton. He was gobbled up pretty quick.

[tang daddy]

It's gotta be something else than the fish....

When I neglected my tank for 5 months I basically let it run to shit, and it was a chain reaction acros went then Lps and finally I told friends to come save the rest and gave the tank away. However it took a really long time for the tank to be in a death state.

Maybe you added something that was toxic, stray voltage, sudden rise in temp, not enough oxygen, or maybe the bacteria died caused a huge spike that stressed the corals to the point they released skin....

Just thinking out loud

[iceman86]

Got home last night and went to the basement where my tank is and it smelled terrible like something was rotting and sure enough it was coming from the tank. Im guessing hydrogen sulphide releasing from the sand bed. My sandbed is only 2" thick but its really coarse sand and easy for detritus to trap itself in there. All fish and inverts are alive. The glass was also covered in green dust algae.

I'm guessing the sand bed needs replacing? I poked a couple spot and detritus like dust come out. I know it's normal to have a little but this seems more than I've ever had in my years of reefing.

[DKoKoMan]

Did you start with live rock or dead rock. I don't think it should be releasing that kind of odour from the sand bed. If I had to guess I would think there is some sort of contaminant(s) in your water.