More problems, a few questions

I am using a 1/2 a cup. That was a typo earlier when I said a full cup.


When I mixed up the water, aerated it for 2 hours and then dumped it in the water in my tank was really cloudy! I didn't heat the water...it was cold. The temp. in my tank went from 76 to 72 when I poured it in.

The water was cloudy in my tank for awhile before it cleared. I lost my damsel (my only fish) a snail and a crab. One crab survived.

Is it possible that all that could shock a fish to death and kill it, but a hermit crab could survive. I've been having so many problems with my tank that I want to know if I killed the fish by being careless, or if I have other problems

Thanks
 
It's doubtful that a temperature drop would kill a healthy fish outright.

Why was the tank water cloudy? That seems weird.

If the water you added was cold, then your measurement of the specific gravity will be off. I throw a submersible heater into the saltwater when I mix it.

As far as the slime algae, it seems to be a general problem in starting tanks. It seems to go way down in an established tank.

Are all the dying fish from the same LFS?
 
Yeah, they are from the same LFS. (Options or scarce where I live now)

When the water came out of the bucket it was cloudy (as I was pouring it into the tank)

I stirred it with a wooden spoon after pouring in the salt. Then I aerated it for an hour or two. When I poured it into the tank it was cloudy.

I also have VERY fine grained aragonite sand (almost like powder). I suppose that could be part of it.
 
Sort of a silly thing to ask, I guess, but something worth mentioning... When you mix your change water in the bucket, it's a bucket that has/is never used for anything else, right? Because you definately wouldn't want to use a bucket that oh, say, you mop the floor with to later mix fish water. Sorry, I'm definately NOT trying to insult you, but just a thought of mine, because I've friends who want to get into the hobby and when I try to explain things like "new fish only buckets" to them they look at me like I'm nuts. :)
Also, when you pour the water into your tank, I know it's hard when it's in a large bucket like that (I use five gallon containers also), but you want to do it carefully enough that you aren't severely disturbing the sandbed. That WOULD cause cloudiness, but I'm thinking could also perhaps cause a lot of bacteria from the bed to then be floating in the water column. Someone who knows more about this will surely pipe up. I too have a new SW tank, and yes, it is WORK. But try not to get discouraged. ;)

HTH
 
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