Tank crash!

[FragIt Dan]

A little OT, but I always diluted my ethanol dose 1:10 (ended up at about 4%) and then dosed 10x the volume. This way I could use a syringe to add a more accurate dose. Having said this, I don't think adding +/- a drop or two would have crashed your tank, but you never know.
Dan

Originally Posted by krazykarl

There is always a chance for error. I could have double dosed it i guess. I do only dose three tiny drops from a very small feeding baster. Tank did not seam as bad last night so just gonna keep my fingers crossed.

[krazykarl]

Well still not sure what was going on in my reef tank but it seems to have stabilzed a bit. Looks like the losses were not too bad as for awhile I thought i might loses everything. I did lose 2 fish and looks like to LPS corals. The rest look like they are gonna pull through. The only thing i know for sure is it looks like the Mg levels were below 1000 ppm not sure if that is what caused the crash. I thought i read somewhere if Mg levels are too low Ca can precipitate. Thanks to those of you who put in their two sense.

[daniella3d]

You lost 2 fish in a 17 gallons? how many fish did you have in there? Your temperature is very high and at that high temperature oxygen level is low, put too many fish in there and a bacteria bloom and there goes the oxygen and the fish die, plus the cloudy water from the bacterias.

That's my guess so far.

Is 17 gallons the total amount of water? that is very small and unstable to be dosing a carbone source with fish in there.

Calcium precipitation might affect the corals but it would not kill fish.