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  • roryson
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roryson replied the topic: Re:Hey guys

Thanks Lam it looks like a little white paint spot or maybe scarring from him doing something ill keep an eye on it for sure. And ill start doing extra water changes. Just curious what symptoms come from HITH?
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roryson replied the topic: Re:Hey guys

Hes eating and pooing fine as well :)
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Lammergeier replied the topic: Re:Hey guys

HITH (or LLE, they're really the same disease) is when holes slowly appear in the head and down the lateral line. It's got quite a few possible causes (carbon in filters, a parasite - hexamita) but the most common causes are usually poor water quality over an extended period of time (nitrates >20ppm, insufficient filtration etc) or a poor, vitamin deficient diet. Sometimes scrapes can look like the sudden onset of HITH even though they're not.

HITH doesn't pop up overnight. It's a slow, chronic condition that can be reversed in its early stages by fixing the root problem.

I hope UNC doesn't mind, but an example of early stage HITH looks like this: www.oscarfishlover.com/forum/68-non-emergency-health-questions/305769-hith-or-nostrils you can see slight pitting on the lateral line and the head, and slight erosion of tissue around the nostrils. This is early enough that with more frequent, larger w/cs it can probably be completely reversed.

If left untreated it can end up like this: 2.bp.blogspot.com/-1hbXWk0UTS8/TV-C9P3wkaI/AAAAAAAAA0M/csvfZn1d0vU/s1600/Oscar_Fish_Disease_HITH.jpg and while this could probably be treated with very clean water and a vitamin enriched diet, scars will probably remain and the fish will always be more susceptible to a relapse of it.

And if left untreated for years a fish will end up like this: www.oscarfishlover.com/forum/44-emergency-please-help/305824-rot-tail-treatment-for-oscar#398510 or like this www.oscarfishlover.com/forum/42-oscar-breeding/301191-can-we-guess-the-gender-of-oscar-by-black-spots?start=20#341516 and by that stage usually all that can be done is to put the poor thing out of its misery.

Preventing HITH is one of (many) reasons why keeping oscars in clean water is so important.
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roryson replied the topic: Re:Hey guys

Wow..... those last 2 examples.... poor fish how is UNC fella going? FG doesnt have any erosions like that. But im upping my water changes anyway i was doing 60% every 5 days but ill start doing it every 3 or 4.
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Lammergeier replied the topic: Re:Hey guys

UNC's fella will be fine, I'm sure :D Last I read he was upping water changes to every couple of days and is aiming to keep the nitrates below 10ppm instead of below 20ppm.

More w/cs definitely won't hurt, but how often do you test for nitrates? I like to aim for keeping them below 10ppm in my tanks. I think 20ppm's a bit borderline, and in UNC's case it was an example where 20ppm wasn't low enough just because his O had a bit of a rough start (so was more susceptible to it I think).

If it helps, with my single-fish tanks I do one 90% (fin-level) w/c per week. For Henry and co (1 O, 1 sev, 9 SDs - 180 gal) I do 3 65 - 75% w/cs per week. Oh, and with Ganbie I do one 50% per week, but he's a 5" fish in a 180 gal tank, and nitrates are still <5ppm on w/c day :pinch:
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