Update... For whatever reason, the remaining four of our Otos are looking just fine. My new theory is that I may have gotten a zucchini with some pesticide on it. It was the smaller of the fish that crapped out, making me wonder if the bigger, more robust ones could metabolize something that did in ...

That's a good question. It might be a shadow because that's where the musculature/fat has petered out. I'll keep an eye open for it but the remaining Otos were doing well when I left for some work travel on Tuesday.

K

Lost the patient in the pic above last night. I hate that.

Some of the school is still busy and eating. The rate of onset of symptoms is quick - like 7-10 days? - and they haven't all gotten sick at once. It SEEMS like a parasitic thing so I'm off to learn more about protozoans and nematodes.

K

Before... https://scontent-a-ord.xx.fbcdn.net/hphotos-xaf1/v/l/t1.0-9/s720x720/10408939_10203986286356904_8353302169000315488_n.jpg?oh=bd68a750d10ef3962a077a707f885e3f&oe=54B2557F ...and not doing well now. This is the most recent one that's faded dramatically in the past week. https://fbcdn-sphotos ...

Thanks for thinking about this. We had a heater thermostat failure last winter and ran the temp up to 90* degrees before we caught it. Did in a nice Bristlenose and two of our Metae corys. Very sad.

K

Temp is very consistent at 76*F. Tank's in an air conditioned room that's below that, so no need for a chiller. I didn't really think to check if the Otos like cooler water. The Metynnis are busy - they keep the tetras reminded that they're down the food chain, just by being bigger and faster - but ...

We started with 15 healthy Otocinclus, whatever they sell as "affinis" around here, probably vittatus? We've got a 75 gal tank, 7ish pH, nitrates max at 40ppm between water changes; no live plants because we've got Metynnis Silver Dollars and they wipe any living flora clean. Problem is that we've ...