Heat Raised & Fish more Active

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sini5t3r

Feeder Fish
MFK Member
Jan 14, 2016
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So i had a Ick problem so I raised the temps to 85.3 Degrees up from 79.5 Degrees before the Ick outbreak. EVER since i raised the temps tho, i have noticed that my fish are WAYYYY more active, Eat better and take food right when its offered.. I've got like 6 Cory cats for bottom cleaning, a Loach (not sure what kind), two different types of catfish, 2 Bichar, 3 Peacock Eels, and a Tire Track Eel and a few other misc fish but ever since the temp raise my eels are eating like beasts and my Bichar are doing the same.

Is it safe to keep them at that temp if they seem to be Thriving with it or should i keep it a little lower after the 4 week heat up to kill the ich? I now do a 35% water change every week and add new Aquarium Salt.
 
I would suggest lowering it back to 79 , because some species of fish may struggle with the temperature being high permanently. :)
 
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There are species whose permanent temperature in the wild is 84-86 degrees. Large sections of the Amazon come to mind.

However...I agree that if a species isn't from that region (or one similarly situated) that a permanent switch to that temperature might not be good.

Temporary increases in temperature, even temporary decreases are fairly common for species from many rives and smaller lakes. One just has to research it to be more comfortable with those choices.

Ick of course is something where raising temperature is appropriate only if the species can handle it, but once it's cured, there is no reason to keep it unnaturally high.
 
I was always lead to believe that increased temps, speed up metabolism in the fish etc; which is why breeders in Thailand are able to quickly grow fish to relatively large sizes for sale faster.

However, this is like burning the candle at both ends; and reduces the age expectancy.

I don't know how much of it is true, its fairly anecdotal
 
I've got two moving bed filters that make a good ammount of o2 and my hub filters hitting the water and a powerhead
 
Agree with the others, once the ich outbreak is over it would be best to lower your temps.


I was always lead to believe that increased temps, speed up metabolism in the fish etc; which is why breeders in Thailand are able to quickly grow fish to relatively large sizes for sale faster.
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Yes, increased temps increase a fishes metabolism, but young fish already have a fairly high metabolism (compared to adults) so there is really no need to adjust temps higher for them. In SE Asia many breeders tend to feed live food (bloodworms as one example) as a staple to juvenile fish, and power feed, hence the reason for quick gains in growth. Not something that I would personally recommend for the reason you stated as well as others. Power feeding something like beef heart to a juvenile discus may net swift gains in growth, but over the long haul prove to create health issues from fatty deposition etc. Fast growing pumped up fish can also suffer from hidden issues due to nutritional deficiencies.
 
Something else to keep in mind is the amount of dissolved O2 in the water is decreased at those temperatures in an aquarium.
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This is spot on.



It's not o2 level that effects them it is the temperature itself.
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That would be incorrect. O2 levels most certainly affect a fishes osmoregulatory system.
 
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