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pH 7.0? is that normal in your area? seems like too pure water, maybe...
but that's off point.

my guess would be the temperature. very young fish are very susceptible to temperature changes (one of the first lessons i learned). it will kill them right off, and harm the rest.

The dispersment valve should have nothing to do with chemicals (or perhaps I am mistaken), but it is to my understanding that said valve merely increases the surface area in which the effluent comes in contact with the filtering medium. Generally speaking, any highly soluble toxic substance that could instantly kill fish would not be administered into the tap. I would assume that it was just a freak accident and let it pass.

After I had thought about it, that is what I was thinking

And it makes sense, it's just the thought that noone bothers to tell the public about what is going on, and then we are the ones who end up losing the fishies that we love, because, "It's not big deal"]:|

I'm glad you found out what happened...and just remember all caps is yelling, and what part of florida are you in?

heidi




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It's the first thing on my mind when I wake
It's the last thing on my mind when I have faced the day
I need it so bad, so bad
It makes me feel like a woman
--Lola
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"I've got a great ambition to die of exhaustion rather than boredom." Thomas Carlyle

WELL IM GLAD TO LET EVERYONE KNOW THAT IT WAS UNKNOWN CHEMICALS IN THE WATER APPARENTLY THE WATER SOURCE WE HAVE MEANING THE WATER SUPPLY PLANT HERE HAD SWITCHED TO A DIFFERENT DISPERSMENT VALVE (WHATEVER) AND THERE WERE AN EXTRA AMOUNT OF CHEMICALS WHICH IS WHAT DID IT.....SO IF YOUR IN FL PLEASE BE CAREFUL

There was just an issue with New Yor City's drinking water. They were urging all residents to boil their water before consumption. Perhaps the "bad" water had something to do with your fish loss.

I suspect keithgh hit the nail on the head.

Depending on what type of Dechlorinator you use, you should add at least 1 and 1/2 times the amount recommended, unless you use something with stress coats or Plant fertilizer in it. If you do, I suggest you change to a Plain De-Chlor that removes both Chlorine and Chloramine and then increase the recommended dosage.

Living in Florida your water treatment plants would fluctuate the amount of chemicals they add based on Rainfall and drought.

mermaiden

thanks for all the help...i seem to have made it through and hope to replace some lost fish soon maybe a week or so

bknygurly1
There are many different types of "CHLORINATOR" I always add twice as much as required and let it sit for a week.

In Aust at the moment they are using different chemicals in the water (possibly because of the drought) and the Chlorine will not evaporate as the same as the previous one used.

This could have been a problem. It would be practicaly impossible to check for all chemicals used. Also there could have been some form of polution that got into your water. This can happen and often does. This is totally out of your control as it can happen any where while the water is traveling to your home. Eg workers working on the line doing repair work.

I lost most of my marine fish by adding only 1Lt of tap water to a 4ft tank. Most deaths happened within 1-12 hrs
A local LFS lost most his stock over night from just one water top up to all his tanks.
Keith

Near enough is not good enough, therefore good enough is not near enough, and only your best will do.
I VOTE DO YOU if not WHY NOT?
VOTE NOW VOTE NOW

yes i did lose 2 angels and 1 baby tiger barb later on that night....and since then i havent lost any and thw wtare seems to be calming down along with the fish..not quite sure what it was but for right now everything seems calmer

I know you lost 4 fish that day, but since then have you had any problems?

If not then I would guess temperature - since if it the water was contaminated then more fish would (presumably) have died.

i added melafix to end a outbreak of some unknown disease i did my water change 24 hours later added freesh water and had 4 fish die almost instantly any clues as to what might be the idea i have had one theory that it might have been a load of chlorine in the water when it was added....????

well it definatley wasnt a chemical the only thing i clean my tank with is hot water when it needs to be cleaned soap on my hands i rinse my hands 4 or 5 times to make sure there is no soap residue on my hands and yes i lost one more that same night.....also the water parameters i dont have exact figures on but i do know the lfs said that the amonia was perfect the chlorine was non existant the ph was 7.0 and there were perfect on nitrates and nitrites so only one would assume the water contained something that wasnt expected...but anyone in the tampa area of florida please be careful.....i dont want someone else losing all these fish either...but now everyone seems to be happy and healthy the exception being if i smell any more melafix i think im gonna be sick lol

OK, I'm trying to think here of what could instantly kill fish when it's poured in the tank.

The answer: something toxic. (Duh, I know!) If you're sure the water wasn't way too hot or way too cold, then it was obviously something in the water - and not ammonia or chlorine because that wouldn't kill fish instantly. So - soap? Some type of chemical? That would be my bet. And since then have any fish died?

OK not to be a pain, but perfect being? Numbers please

Next, everything is was fine before this water change? Did you check the temp? Is your heater going crazy and spiking in either direction? What kind of filtration do you use?

I'm beginning to wonder if you:
A) hit a patch of anaerobic bacteria (which is poisonous, and happens every so often when least expected)

B) What happened to me back in December, the local city water went through some changes, and they had to shut down one area and start up another area, then vice-versa...And in doing this released all sorts of odd things into our local water supply...I only found out because I was at the lfs when another girl who was knowledgeable was and we got to talking about the recent losses and a city worker happened to mention what was going on]:|


Either way let's try this, ok? Let's do another water change, about 30% again, this time though let's not use the city water...go get some distilled, purified, distilled water from the store...either your lfs or 1 gallon jugs from Wal-Mart, Kroger's, etc.

Again be sure that the water temp is the same...Knowing that you are in Florida, and knowing how the heat has been hitting Texas I know getting the water cool enough is becoming a hassle...and yes, I'm using cold water

Best of luck and do another water change, with something other than out of the tap...heidi

"I've got a great ambition to die of exhaustion rather than boredom." Thomas Carlyle

lol actually im in florida.....the parameters for the fatal water were absolutley perfect ph 7.0 amonia perfect nitrite and nitrate perfect nothing to speak of which makes this whole past 2 weeks so strange i did a 30% water change and the tank still reaks of melafix even after the water change.....

based on your user name I assume that you live in New York. And I read in your previous thread that you have the tank set up for 8 months.

Could it be that your tab water parameters change drastically during the summer months, in particular if it is as hot as it right now? Did you test your tab water parameters in the last days? How about the tank water parameters AFTER you did the fatal water change?

Did you check the temperature of the tank after you did the water change (Heidi’s point)?

Another reason why this happened could be that your fish were on their way out anyway (based on the illness you mentioned in your last thread) and the slight increase in stress during the water change accelerated the process.

How much water did you change?

Let’s keep on digging

Ingo

---

Proud Member of the New Jersey Aquatic Gardeners Club

ok
1) its a 55 gallon
2) parameters were all perfect never had an issue with bad water
3.) signs fish were sick were real slight discoloration with a moliie i was told melafix should fix the problem
waited 24 hours for water change ADDED CHLORINATOR adn as soon as the fresh batch of water hit the tank the fish started dropping...
4.) i have currently 5 very young angels 3 black skirts 4 pictus cats and 2 very young balas..
ive had the water tested evry other day for the past 2 weeks and been to numerous pet stores trying to figure out what has been plauging these poor fish and nobody can come up with anything...the fish i believed to be ill is now gone and now i still am haveing a few casulaties into the night hours ive lost an angel and a tetra

bknygurly1

I strongly suggest you read the first two threads in this topic. When you have done this add all the necesary infomation and we should be able to assist you better.'

Keith

Near enough is not good enough, therefore good enough is not near enough, and only your best will do.
I VOTE DO YOU if not WHY NOT?
VOTE NOW VOTE NOW

Did you add dechlorinator? What are your water parameters? What were they? What size of tank are we talking about, and what all is in the tank?

What did the unknown infection/problem look like? What were the signs?

I know it's a lot of questions, take them 1 at a time, and let's see if we can prevent any further loss...

Also it could be the fact that the water temps were too differentLet us know, ok? heidi





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I ain't as good as I once was
That's just the cold hard truth
I still throw a few back, talk a little smack
When I'm feeling bullet proof
So don't double dog dare me now
'Cause I'd have to call your bluff
I ain't as good as I once was,
But am as good once as I ever was
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"I've got a great ambition to die of exhaustion rather than boredom." Thomas Carlyle

Melafix is an antiseptic. Won't cure any unknown diseases. It will prevent infection in open wounds etc.

If you didn't dechlorinate your water, well that's what most likely killed your fish.