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-   -   water temp to hot for corys?? (http://www.tropicalfishkeeping.com/catfish/water-temp-hot-corys-108175/)

grannyfish 07-22-2012 11:03 AM

water temp to hot for corys??
 
I have a new 10 gallon tank I am still cycling and the water temp has been hovering at 79-80 degrees - just at room temp without the heater. I assume the light is warming the water a bit.

I would like to eventually keep pygmy corys or other small corys and from the fish profiles I have read, 80 is too warm for them. I am sure when the season cool off, I can keep it lower but will it harm them if the temp is warm?

Byron 07-22-2012 01:26 PM

Long-term this is too warm for the "dwarf" species and many of the others too. But summer heat increases are something we have to live with, and I have these (up to around 80F now with my A/C) for short spells and the fish seem to manage. The dwarf species are best at 75F which is where my tank with these little fellows is normally kept.

Byron.

grannyfish 07-22-2012 02:53 PM

thanks. I know if I get any corys in the next month or so, my water will be this warm unless we have a really cooling spell. Our house temp is never over 76-77. Don't know how to cool off my water this summer.

Byron 07-22-2012 04:02 PM

Quote:

Originally Posted by grannyfish (Post 1166677)
thanks. I know if I get any corys in the next month or so, my water will be this warm unless we have a really cooling spell. Our house temp is never over 76-77. Don't know how to cool off my water this summer.

Keep the tank lights off (if you have live plants, you might be able to reduce the light period, plants can maange with 5-6 hours daily, and this could be during the cooler morning so lights could be off in the mid to late afternoon); keeping the tank open (cover) unless you have fish that might jump--and many will; feeding less (food digestion increases fish's need for oxygen and increased physiology); ensuring good water movement (air stones, filter flow) and at the surface (to increase oxygen as well as maintaining lower heat). Some suggest a fan blowing across the tank surface.

Years ago I livedin a condo and during heat waves lasting a couple weeks it would be around 90F during the days, so of course the tanks were in the high 80's. I never lost any fish. I now am in a house with the fish tanks all in one room, and I have a portable air conditioner than will keep the room at 80F during warm days.

Byron.


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