change temp with the season

[Petebert]

does anyone change their tank temp with the seasons? if so what range, so
far since setting up my tank in janurary ive kept it pretty close to 75°

[Dinky]

"Petebert" > wrote in message
...
> does anyone change their tank temp with the seasons? if so what range, so
> far since setting up my tank in janurary ive kept it pretty close to 75°
>
>

Temperature changes are stressfull on fish, in the wild as well as in
captivity. If the temperature changes are gradual, the fish adapt, but why
put them through it? Breeding sometimes requires temp changes, but otherwise
you'd be doing your fish a favor by retaining a stable environment.

billy

[Bob K.]

>
>Temperature changes are stressfull on fish, in the wild as well as in
>captivity. If the temperature changes are gradual, the fish adapt, but why
>put them through it? Breeding sometimes requires temp changes, but otherwise
>you'd be doing your fish a favor by retaining a stable environment.
>
>billy

Fish in the wild swim from surface to other depths at the
flick of a fin. Have you ever noticed the huge difference
in termperature at the surface (vs a foot or more down)
of still water? (pond, creek, swamp, etc)

I'm not advocating that you create those conditions, but
a few degrees of quick change isn't as stressful as you indicate.

Bob

[Mike Noren]

"Petebert" > wrote in message >...
> does anyone change their tank temp with the seasons? if so what range, so
> far since setting up my tank in janurary ive kept it pretty close to 75°

Well... Sortof.

After two incidents where heaters stuck and killed my fish, I don't
use heaters anymore. The tank is in a heated room, which in winter is
never cooler than 18C (64F) and in summer may briefly reach 30C (86F).
The water temperature in winter varies between 20-24C and in summer
28-32C.

The tank is also close to a window, so it gets much more light in
summer than in winter.

I've found that 1) everything breeds in spring/early summer,
('everything' here being gobies, platies, celebes rainbows, lampeyes,
and neon tetras), and 2) nothing breeds in autumn/winter. I've had no
temperature related problems apart from that it's darn difficult to
get anything to breed during winter, and darn difficult to take care
of the glut of fry in spring.

Actually I'm a bit surprised that seemingly all species respond to
increasing temperature and light by breeding, as at least some of them
in nature tend to spawn during rainy season (less light, lower temp).