AQUARIUM COOLING FANS

Thanks to this design, you can increase or decrease the number of fans. For example, my aquarium is 200 lt reef tank and 3 fans look enough.

You can use 80mm fans with this set. I recommend using INOX - Stainless Steel nuts and bolts.

Material List:

M4x30 - 4 Set
M4x40 - 4 Set. You should increase 4 set for adding each fan. (For one fan, you don't need)
M6x20 - 2 Set
M6x30 - 2 Set

I recommend using W1209 thermostat for safely cooling ambient for the health of your aquarium.