viral

Hi APC friends. I am having problem maintaining temp. of my planted aquarium. General temp in my city is 35-42 degree C in this summer season. I have attached a cooling fan on top of the tank and maintaining temp. between 25-27 C. My friend gave me this radiator and instructed me to use it with cooler fan to lower down temperature of tank. Cooling fins and in-out pipes are of copper.
So please kindly suggest me, will it be appropriate to use this thing in my planted tank? Is copper harmful to fish?

Seattle_Aquarist

Hi viral,

I would not use it because some fish species are very susceptible to copper poisoning.

If my temperatures get too high I float a plastic bag with a couple of ice cubes in the tank.

Tikulila

i agree, the DIY chiller is a pain to work out to make, leave it

viral

Then I would leave this chiller idea aside. I can't risk the life of my fishes. Your idea of ice cubes is far more handy and better...

Tikulila

What I do to lower the temp' is take the 0.5L or 0.33L bottles and freeze them, then put the in the aquarium. They survive for about 1H.

Zapins

A less intensive method is to angle a fan so it blows air across the top of your tank. It will reduce the temperature by evaporative cooling.

viral

That's the same angle, I have placed my fan. It reduces temp. by 5 degrees. But I need to lower down more for my new dwarf Hc. I brought 13 bunches of them but only two of them survived. Others have died.