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Fwd: [GSAS-Member] Hello & help!



Hello Anita.
I had a similar experience with fish hanging out near the surface recently, only with no fish loss. This occured in a tank with a heavy fish load. the fish seemed stressed early in the morning and hung near surface before the lights came on, in a planted tank. After the lights came on and the plants started producing O2 and consuming CO2 things were fine. I added aeration. Problem solved.
Bob

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Subject: [GSAS-Member] Hello & help!
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I am a newbie, & started getting emails from this list the day after the September meeting -- darn! I'm looking forward to the October meeting with bated breath, though.

Though I am a newbie, I've already acquired 6 tanks, & have 3 really set up, & 1 functioning as a quarantine tank. Nobody warned me this hobby was addictive.

But I need help over something that has me completely puzzled. All my tanks are planted, & my first one, a 39 gallon, is mature, with no ammonia or nitrite showing up at all. I'm doing a 15% water change each week, which is keeping the nitrates really low. It is heavily planted, and I'm delivering CO2 with a homemade system that seems to be working well -- when I did a hardness & ph test, it showed CO2 in the optimal range. It is slightly acidic, about 6.8. I'm running a AquaClear 300 filter, but it was used and doesn't seem to be quite as efficient as another of the same model that I have on a smaller tank, but it's close. Everything I can test is spot on. There is a little too much algae, so I'm trying to work on that with learning appropriate feeding levels & getting algae eaters in there.

So here's the problem. My fish are dying. They seem to go in groups, one breed at a time. At first it was either ich or velvet (I don't really know the difference, haven't seen them in person), which I treated with Maracyn on the advice of the Fish Store. I lost my 4 gold rams & 2 blue german rams, my silver hatchets, & my 3 younger Serpae tetras (my 4 adults are still fine). That was during the ich/velvet outbreak, which taught me the wisdom of quarantine tanks, and my 20 gallon is quarantining 2 adult angels, & a 3 gallon is now quarantining some penguins and chinese algae eaters.

Then I lost my 4 marbled angels (about 1" long each). Then my 2 siamese algae eaters died (which isn't helping the algae situation, but it will almost a month before the new ones are out of quarantine). In the last 24 hours I've lost my six silver-tipped tetras & my six marbled hatchets. Right now I've got 5 bronze corys, 4 adult serpae tetras, a talking catfish, a bamboo shrimp, a few rainbow shrimp, & 2 ghost shrimps, plus 2 fiddler crabs. I'm not seeing any other fish in there.

I cannot imagine what is going wrong! Any advice of what to do next, or what to look for next, would be appreciated.

Anita Jacobson

BTW, some fish gave a warning that they were sick (the silver hatchets & the angels both started hanging out at the surface instead of swimming around). Some fish obviously died from ich/velvet. But some, like my marble hatchets, gave no warning at all. Swimming around happily one night, every single one of them floating the next morning.


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