"Ben" wrote in message
...
Kris wrote:

Because of the current temperature outside, the water in my aquarium
increases more than it should. For the moment, temperature is about
31 °C
while it should be about 27-28°C. Could someone give me some tips to
keep
the temperature at 27 °C?

Close to the already mentioned bottle is take out some water from the
tank, put it in an ice cube tray, after an hour or so, sprinkle some
food in it.

When it's frozen, you can put one or two in the tank. Being tank
water,
it's less likely to drasticlly change any of the water conditions plus
the fish seem to like attempting to get the food in it.

-Ben

LOL, the food in the cubes idea is cute. How applicable this is, depends
on the tank size. Ice cubes would have only a negligable effect on a
50+g tank. Not already mentioned, leave lights off, leave cover open
during the day (Angelfish are not jumpers, and are quite tolerant of
several days of high temperatures too). You can always google the
newsgroup archives (this is an annual question). There you will find an
esoteric collection of ideas, from electric coolers (they exist for
aquaria), to DIY recirculators using SS piping into a cheap refrigerator.

NetMax