Ailing Neon/green Tetra

spidergravy

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Hello there

I've not posted for a while (been busy having babies and the like) but you've always been really helpful in the past so I was wondering if you could perhaps tell me what illness just one of my neon tetra is suffering from? I've had white-spot in both tanks this week, and at the same time I noticed that one of the tetra has torn fins and tail and what looks like white fluff both on the ends of his fins and where they meet his body. He doesn't seem to be unhappy about it, and when I tried to catch him he swam as fast as the others and in the end I decided to leave him alone and not stress him too much. I've put the best pictures I've got here but they aren't great. Photographing moving fish underwater behind glass in the dark is a skill I've not really developed yet... :)

tetra1.jpg
tetra2.jpg


My water stats are as follows:

nitrite - 0ppm
ammonia - 0ppm
pH - 7.0 - 7.2

However, my nitrates are sky high. This is another problem and I'll post another post about that.

I take about 20 litres out of my 250 litre tank about once every 10 days to two weeks. I suction the gravel at the same time. I change the white woolly filter then too, and every few weeks I change the carbon one. I have a nice tetratec 1200 external pump and an airstone in the tank.

Fish-wise I have a giant common pleco, half a dozen neon tetra, a dozen or so guppies, a clown loach, a black shark, five minnows, four swordtails and two danios. Talking of danios, at the same time I noticed my tetra going ill and the whitespot, I also saw one of the danios go fuzzy as if his scales were sticking up. By the time I tried to catch him he'd vanished and the next morning he was dead, poor thing. Three guppies, two swordtails and three (now two) danios were new aquisitions last week.

Oh and while I'll add this to the next post about my water condition, I will mention this too: the last few times I've changed the white wooly filter, and this week when I removed the carbon to treat the ich, I've noticed something weird in the filter. Tiny white balls, look a bit like eggs, no more than a milimetre across in both the wool and the carbon filter. They appear to be organic rather than gravel, but there are hundreds of them. My first thought was some sort of mite (cos I used to do entymology) or eggs, or maybe snail eggs, but I really don't know. I was having flood-issues when I changed the filter this time, so I didn't get photos, but does this sound familiar to anyone?

Hope you can help...
 

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