What's wrong?

[rowdyates]

If I understand this correctly, are you saying adding the high pH water from the lfs has killed all the other fish, surely the only fish to die would be the barbs as they had the most shock, the existing fish would have just had a small exposure to the high pH. Just my observations, not experience.

Keith

 

[kazzzagreen]

Don't know what's killed the other fish. That's the problem. All I know is One minute I had a lively thriving tank and within a week I had a BIG problem!

 

[rowdyates]

Unfortunately I can't help there, all I thought was logically how could it be the pH, really hope you get to the bottom of it and lose no more.

Regards

Keith

 

[kazzzagreen]

Me too.

 

[mattbeau]

If I understand this correctly, are you saying adding the high pH water from the lfs has killed all the other fish, surely the only fish to die would be the barbs as they had the most shock, the existing fish would have just had a small exposure to the high pH. Just my observations, not experience.

Keith

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agreed,

if it was PH shock the neons would have been the least affected right now and they would have died off when they were first introduced

if you were adding them 2 months between each batch the neons have been in there for 8 months now. they would be well acclimated by this point, adding 1 quart of dirty water to (im guessing) thirty gallons is not going to affect things that much PH wise.

so what you need to find out now is what is stressing the fish out, as they are still acting very shy, what ever you do don't start adjusting the PH as fish cant really handle the PH swings

how long is the light on for? try cutting the light out a little earlier in the day, to help calm them down

I would say try feeding them some frozen foods, though this could bring on other problems, if its stress alone, then I'm running out of Ideas

If it is disease from stress then you might want to try to bring there spirits up.

btw the neon will remain stressed as long as he has no others of his kind

the cherry barbs will become a bit more agressive with only two.

good luck

 

[kazzzagreen]

Thanks. I will try cutting down the amount of time the light is on.

 

[kazzzagreen]

Just an update for everyone who was helping me with my fish problem.

I decided to take the plunge and remove all the fish and put them into my smaller already established tank. It has been being used to quarantine new arrivals so was well established)

That was 10 days ago and I haven't lost any!

I think that probably means that whoever suggested a toxin may have got in must have been right.

The fish seem happy, the levels are stable (ammonia = 0, nitrite = 0, nitrate = 30) and none have died.

Thank you to everyone who offered advice.