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Are our fish overheated?

This is a discussion on Are our fish overheated? within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> I'm glad you did post this, Olimpia. I read the article a couple of weeks back. I keep my tanks at the lower end ...

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Are our fish overheated?
Old 03-13-2013, 12:38 PM   #21
 
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I'm glad you did post this, Olimpia. I read the article a couple of weeks back. I keep my tanks at the lower end of the species comfort zone with the exception of my betta tank. After reading this I dialed the heater down to 76F, and the fish became very lethargic. I turned it back up to 78F, and things were fine again.

The moral of this story is to learn the limits of your fish. Whether they are wild-caught or captive-bred or line-bred makes a pretty big difference. Some fish can take the cooler temps and others just can't.
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Old 03-13-2013, 04:09 PM   #22
 
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Good advice, Izzy. . .
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Old 03-13-2013, 04:16 PM   #23
 
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Quote:
Originally Posted by thekoimaiden View Post
I'm glad you did post this, Olimpia. I read the article a couple of weeks back. I keep my tanks at the lower end of the species comfort zone with the exception of my betta tank. After reading this I dialed the heater down to 76F, and the fish became very lethargic. I turned it back up to 78F, and things were fine again.

The moral of this story is to learn the limits of your fish. Whether they are wild-caught or captive-bred or line-bred makes a pretty big difference. Some fish can take the cooler temps and others just can't.
Thats interesting. 78 is not the lower end of your fishs comfort zones, and 76 is certainly not cool for them. ... Unless you have different fish than you have listed in your aquarium info. It's amazing that 2 degrees within the middle of their temperature range could have such a huge impact. You must have exceptionally sensitive fish
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Old 03-13-2013, 04:26 PM   #24
 
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Originally Posted by jaysee View Post
Thats interesting. 78 is not the lower end of your fishs comfort zones, and 76 is certainly not cool for them. ... Unless you have different fish than you have listed in your aquarium info. It's amazing that 2 degrees within the middle of their temperature range could have such a huge impact. You must have exceptionally sensitive fish
I'm specifically talking about the betta tank not my other tanks. The bettas became lethargic when I turned the temp down, specifically the more sensitive betta. I wasn't too worried about the plakat, but I figured for the sake of the giant plakat (which are known to have digestive and swim bladder issues due to their large size) I should turn it back to where he was more comfortable.
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Old 03-13-2013, 05:01 PM   #25
 
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Quote:
Originally Posted by thekoimaiden View Post
The moral of this story is to learn the limits of your fish.
Based on what people are saying here, it seems that fish can react in very different ways depending on any number of factors. . . Obviously, some people have had no problems with keeping "warm water" fish at the cool end of their temperature spectrum, while others are reporting that their fish showed signs of stress. . . Fish seem to me to be pretty adaptable little buggers, given time in a new situation, my guess is that most healthy fish would ultimately be fine at the lower temperatures, even if they did show some sluggishness at first. It may be a matter of 'getting used' to things.

That said, I know for sure that I wouldn't be tough enough to let my fish get through an adaptation process! First sign of any unusual behavior, and I'd dial that temp right back up. . . I'm too. . . attached? to my fish to push them at all if I can help it.

Last edited by Chesh; 03-13-2013 at 05:04 PM..
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Old 03-13-2013, 05:01 PM   #26
 
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Oh well that makes more sense - they are a warm water fish. I would not suggest not heating warm water fish like bettas, GBRs and such. Though, my betta is in an unheated tank. Seems pretty active, though I must admit I don't pay it a whole lot of attention - it's next to the 125. Hard to look away from that tank
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Old 03-13-2013, 07:29 PM   #27
 
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My tank is a 35 gallon planted with 4 harlequin rasboras (I know, the number is way too low, had something wipe most of them out a few weeks ago) and 5 kuhli loaches.

It took the tank about a day to settle to a temperature of around 72F-73F degrees, with an ambient room temperature of 77F.
Nothing in their behavior seemed to change, the fish all ate and swam as normal. The only change I did see is today, when the ambient room temperature was lowered to 72F for a few hours, the tank dropped to around 70F-71F degrees, and the loaches were a bit sluggish and not as active. The rasboras acted normally. The ambient room temperature was then raised back to 77F and the tank now sits at 72F, several hours later.

Dunno if this is useful to anyone but it's just what I've seen through my tank. I'm most likely going to keep the heater removed, as I'm thinking it's more natural for the fish to have slightly fluctuating temperatures.
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Old 03-13-2013, 08:21 PM   #28
 
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Cool! Keep us updated, Jen!
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