A Sad Story.....

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So, the pH in my established tank crashed about a week ago. It went down to 6.4 and I know with swordtails and platys, its needs to be much higher. i did water changes and everything and could not get the ph back up. So I went to my LFS and asked some advice. They recommended that I used API pH correct 7.0 to start out with, so I don't jump the pH to high too fast. Well, I must have gotten a bad batch, within 24 hours, the tank was cloudy brown, the pH jumped to 8.0, and four of my fish died from it. I lost my chinese algae eater, my BABY swordtail (he was only 3 months old) one of my older male swordtails, and my fancy guppy. As much as I didn't want to I had to remove them from the tank and move them over to the 40 gallon that I am currently cycling. The good thing is, the cycle was almost done, the ammonia was low, and the nitrites were low. I did a 50% water change to get rid of the few nitrites and also to drop the nitrate level. I did this twice to bring the nitrates below 20ppm. With the help of established media from my friends fish tank, the cycle seems to be continuing. They have been in the new tank for 24 hours and I have been watching the water like a hawk. The ammonia remains low (no higher than .25ppm), and the nitrites have not spiked. The fish that survived the ordeal seems to be doing okay. My survivers were my 2 red male swordtail, my pregnent female platy, my pleco, my hi-fin white skirt tetra, my clown loach, and my halfmoon betta. They seem a little shaken up by the ordeal and seem to be a little weak. They are swimming more now and eating. I really do hope they will be okay.

I am posting this kind of as a warning about those products. I am sure most of you know about them, but this goes out mainly to newbies like me to be careful. This ordeal devastated me because I had those adult fish for almost a year, and that baby was born in my tank :( I hope this doesn't happen to anyone else. On a lighter note, I did go back to the fish store and they refunded my money for that product, as well as replaced the fish that it killed. I know you can't put a price on fish you have had that long, but the fact that they wanted to try and make it right made the situation a little easier.
 
What a shame. Most fish will adapt to a wide range of ph conditions, especially things like platys. I wouldn't worry about it or mess with it anymore.
 
Yes; we're always telling newbies not to try and mees with their pH; it causes far more harm than just leaving it.

I'm sorry for your losses, Dieses :-(
 
That sucks - well done for getting on top of it.

I wonder if it set off an algae or bacterial bloom.

Possibly if pH had dropped low there may have been a kill off of some bacterias leaving a last one poised to bloom as soon as the pH was restored.
All a mystery.
 
Well, I was really worried about how low the pH was because I have read that swordtails and platys thrive at 7.4, so it being so low at 6.4 worried me alot. I now know that I won't use that product again. I will stick to weekly 10-20% water changes as a means of correction. Now all I have to do it nurse the survivors back to health. Is there anything I should do for them to help them, or is waiting the best thing? I am carefully monitoring the water in the new tank as it was not fully cycled, and I hate the fact I am having to finish the cycle with my fish in it, but it was depleting ammonia from 5ppm overnite, and the nitrites were only at .5ppm after 24 hours, so I am hoping that this is strong enough for my small community. There are only 9 fish in the 40 gallon tank.
 
Just keep testing and water change if necessary :good:
 
Sorry for your losses. It is always sad to lose fish that were born in your tank and had for many years.
 
sorry for your loss, plenty of clean water changes will help the fish stay healthy and keep on top of any cycle issues :good:
 
sorry for your loss, plenty of clean water changes will help the fish stay healthy and keep on top of any cycle issues :good:
I'm trying to, but the tank i moved them to was only 3.5 weeks into the fishless cycle. I hope adding the fish wont throw off the cycle. I did make sure that there were no toxic nitrites or ammonia before moving them though...
 
sorry for your loss, plenty of clean water changes will help the fish stay healthy and keep on top of any cycle issues :good:
I'm trying to, but the tank i moved them to was only 3.5 weeks into the fishless cycle. I hope adding the fish wont throw off the cycle. I did make sure that there were no toxic nitrites or ammonia before moving them though...

Only? With the help of established media it should be just about to finish. The 3 tanks i did With the help of established media took 19-25 days
 
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Well, 24 hours since the move to their new home, they seem to be doing well. The fish that were affected are active in the tank, and eating. I tested the water, Ammonia .25, Nitrites 0, Nitrates 0, pH 7.2

for a tank that was not fully cycled, is this good for a tank after 24 hours of being exposed to fish waste and food? Does it look like the cycle is still working?
 
I'd do another water change since you've developed some ammonia. And you're not quite fully cycled yet, as you should have some nitrates showing. Keep doing the water changes until things level out. Can you get some more media from your friend?
 
I'd do another water change since you've developed some ammonia. And you're not quite fully cycled yet, as you should have some nitrates showing. Keep doing the water changes until things level out. Can you get some more media from your friend?
Before I put them in the tank, after the three weeks i had been doing the fishless cycle, for about to days it was converting all ammonia to nitrates in 24 hours. I did a reading this morning, ammonia 0, nitrites 0, nitrates 20. i dont know if i can get anymore media from my friend, but Ill ask her

sorry for your loss, plenty of clean water changes will help the fish stay healthy and keep on top of any cycle issues :good:
I'm trying to, but the tank i moved them to was only 3.5 weeks into the fishless cycle. I hope adding the fish wont throw off the cycle. I did make sure that there were no toxic nitrites or ammonia before moving them though...

Only? With the help of established media it should be just about to finish. The 3 tanks i did With the help of established media took 19-25 days
it looks like you might be right. this morning readings were ammonia 0, nitrites 0, nitrates 20
 

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