any good idea to hold a DC fan in position ?

[peterkoh]

hi folks,

i've recently rid of the overhead filter that comes with the tank. now the rear part of the tank receives more light and i guess more co2 can be kept by using internal filter.

however, the water temp. did not go down much as i expected it since there are more exposed surface water. i tried attaching a 4in x 4in DC fan to the rear using blu-tac. it seems to work by bringing the water temp down from 30 to 28-29 deg. blue-tac isn't the best material to secure a fan. thus i'm looking for ideas u may have in holding the fan against the rear outside edge of the tank which is the best position for my tank as it blows across the water surface and forces the heat from the light out thru the front of the tank.

thks bros.

peter

[tawauboy]

if you don't mind the look, you can try tying a pair of long chopsticks on the fan. suspend the fan between your light and tank edge.

[theodore]

Fans bring down the temperature of our tanks by speeding up evaporation. You may wish to try adjusting your fans to blow at an angle onto the water surface if you wish to bring the temperature down to room temperature.