Neon tetras, dying one by one.

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Little Soprano

Feeder Fish
MFK Member
Mar 12, 2014
31
0
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Grand Rapids, MI
So to replace the 5 or so neons that the comet ate, I went to Petsmart (stupid decision number 1) and bought 6 more neons to bring the number up to 12. I didn't quarantine them (stupid decision number 2) as the comet is in the other tank we have. The suckers have been dying off ONE by ONE by ONE. My water parameters are a pH 7.6
kH 10
gH 17
nitrite 0 ppm
nitrate 5 ppm

I was at 12, I'm down to 8. At first I thought maybe it the CO2, but that was started before the tetras arrived, and no one was gasping at all. So I crossed that off the list. Then I realized that the temperature of my tank was WAY lower then it should've been, because I forgot to plug back in my heater when the filter went two weeks ago. So the tank was sitting at 70, I let the heater bring the temperature back up to 78-where it now sits. Everyday there seems to be a new neon separating itself from the group and hiding all the way on the right side of the tank away from everyone. The rest of the tank is acting fine, except for one of the danios. I thought with the temperature raised up that they would start doing better, which as a group they definitely are, have been zipping around the tank together like normal, but woke up this morning to what sounded like something trying to dig its way into the house. Went over to the fish tank, it was the filter, so I checked both of the intakes, and the mid level one on the intake tube had plant leaves on it, which again is somewhat normal, but it's never made a sound like that. I reached my hand to clear the leaves, and out pops another neon tetra. It had been 3 days so I thought maybe they were done with that, but nope.

It's just so odd that every time after a neon dies, another seems to remove itself from the group and go sit by itself on the side of the tank. They are eating, and will come up to the side of the tank when I walk over, but the one that seperates itself only will half of the time. I just don't get it. I've never had such bad luck with neons. It doesn't look like ich at all, and everyone else is still acting like themselves. The last few dead tetras did look like they got picked at a bit when I've been pulling them out come morning, so I don't know if whatever it is, is spreading like that or what. They looked fairly healthy when we bought them, though I didn't notice until they were swimming along the ones we bought at the LFS that there coloration wasn't as vibrant, though I didn't think anything of it. They were all acting fairly normal, until one seperated itself from the group and died, and now it's been a mix of both the LFS ones and the petsmart tetras. I do notice the ones that hide on the side of the tank tend to be somewhat bloated, and there color fades FAST too, and as the color starts to go more, they stop eating, etc. That and they start to get a slight white coloration to them, but it isn't ich.

Some people say you can't put them in a new tank, but this tank has been running for as long as I can remember, and the Rainbow Shark and CAE have been in the tank for almost 1.5 years alone. Same with the Zebras. And previous to me moving in, the tank has been running upwards of almost 6 year straight.

The other fish in the tank:
Rainbow Shark
Chinese Algae Eater
4 GLOtetras/Black Skirts
3 Zebras, still haven't replaced the ones the Comet ate
An Amano and a few Bamboo Shrimp
Nerite snails
I think there's about 8 or 9 neons left, fairly certain there's 8.

Any ideas?
 
Howdy

Your water is hard and slightly basic. Neons do best in soft acidic water. I am not truly surprised that you are not overly successful keeping them long term, also considering the mistakes you already pointed out yourself.

I always found it to be best to find fish whose native water parameters resemble those of my tap water...

Good luck
HarleyK


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Howdy

Your water is hard and slightly basic. Neons do best in soft acidic water. I am not truly surprised that you are not overly successful keeping them long term, also considering the mistakes you already pointed out yourself.

I always found it to be best to find fish whose native water parameters resemble those of my tap water...

Good luck
HarleyK


Sent from my iPhone using MonsterAquariaNetwork app

Well I do know I made stupid mistakes with buying them from Petsmart and not QTing them. But at the time I didn't think twice about it, came home, and realized oh crap the Comet is in the Quarantine tank until the pond warms up. The group we purchased from the LFS has been healthy as can be for the last two months or so, but when the tetras from Petsmart arrived, everything went down hill.

Out of House Water Softener (big system downstairs runs to kitchen sink, carbon filter as well):
between 6.8-7.0 pH
2.2 kH
1.2 gH

I've never really used the softened water for the most part, but would mixing it half and half with the tap, during water changes help make it more suitable for them? I do know the kH and GH in the softened water is pretty low....
 
I agree that I wouldn't use water softened my ion exchange, either. If you want to manipulate water chemistry, then you need to dilute with distilled or reverse osmosis water.

BTW: healthy for 2 months doesn't mean much quite yet ... Once they've been healthy for two years you can smile. My cardinals are approaching 3 years of age...my water is soft and acidic BTW...


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Yes but most of the other fish in the tank, if I'm not mistaken, are also soft water fish, yet they are doing fine, the Rainbow and CAE have been with us for over a year and a half, with the Rainbow being about 5.5-6" long, and the CAE being just as long. The Danios have been here with them too. All are in excellent health, happy, and active. And I never knew about the ion water, debating what water source to use for my new shrimp tank, and it's either the tap or R.O.

I guess I suck at keeping fishies :P. Especially neon tetras. Ponds are so much easier lol.
 
Sometime fish dies through no fault of the fishkeeper. These are living things that are subject to diseases and medical conditions just like us humans. Even with all our science, knowledge, and technologies, a lot of humans (young and old) still succumbs to diseases and medical conditions well before our time.

BTW, buying fish from a chain store is not neccessarily a "stupid decision". Through my many years, I've bought plenty of fish from chain stores with a much, much higher percentage of success rate than losses. I've also been visited many, many lfs that are poorly kept.
 
Sometime fish dies through no fault of the fishkeeper. These are living things that are subject to diseases and medical conditions just like us humans. Even with all our science, knowledge, and technologies, a lot of humans (young and old) still succumbs to diseases and medical conditions well before our time.

BTW, buying fish from a chain store is not neccessarily a "stupid decision". Through my many years, I've bought plenty of fish from chain stores with a much, much higher percentage of success rate than losses. I've also been visited many, many lfs that are poorly kept.

Heh. Our Petco's fish are always in immaculate condition. The store that we got the CAE (who was not labled as a cae mind you, labled as a "peaceful SAE"....peaceful psh.) and the Rainbow shark, is a LFS, not the best.... Both ended up with Anchor Worm, which was the biggest PITA I've ever had to deal with. And my fish have scars from it too. Petco's fish have always done greatly in our tank. The good LFS is about 45 minutes away, though worth it for the most part. I just didn't expect for the Petsmart Tetras to die so damn fast. I do know previously the Comet decided they were a yummy snack, but he's out of the tank. Petsmart's tanks were spotless, though when I put the bag into the water to start to acclimate them, I should've taken the fish back right then and there, as comparing them to the existing stock, they were pretty pale...

They did say if you bring back a dead fish they'll replace it or give store credit. Too bad I didn't keep the one from yesterday or the day before. Both got stuck up against the filter intake, and with a bunch of white stuff on them (not ich white). Here ya go Petsmart! They looked stunning...
 
my thought is that it might be the drop in temp stressed the little guys... and they have picked up some health issue from that...maybe bacterial , maybe parasitic.You might want to melafix the tank for about 5-7 days and see if you can get it in check ,I wouldn't do anything stronger without a better idea what is wrong...P.S. check with the store where you bought the fish as to the ph they keep their tanks ,if it is much off what yours is, there lies the problem...at that point no need to medicate..
 
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