I tried the search function on this item but it was disabled. Does anyone have an opinion on this fan or experience with one? I have a 75 gallon with a wooden canopy and was wondering if it would mount on the end between the tank and the canopy to blow length wise across the aquarium. I have only seen 1 view of it on various websites and it is hard to tell if it will work or not. Also, I have not seen anywhere that states what the CFM of this fan is. I currently have a couple of 3 5/8 inch fans mounted at the back of the canopy...one blowing in and one out and a 6" fan in the sump. With this setup I sill reach 83+ degrees on some days. If this thing has good flow, I feel the laminar movement lengthwise across the tank would help.
TUNZE Aquawind fan
- Thread starter mkhenry
- Start date
From our research on fans we found CFM was not very important and I don't have that rating info though with some time I can probably get it. From what we found fans work by dissipating the "cloud" of evaporated water that acts to prevent further evaporation. For example, you would have a 100% humidity level directly above the aquarium and this acts as a thermal barrier preventing the transfer of heat energy by further evaporation. The fan lowers the humidity by dissipating the "cloud" and more evaporation is possible. Barring extremely high volume fans that actually cause an increase in surface area by creating a wave on the surface of the tank, there will be a virtually no difference based on CFM. The most a fan can cool a tank in general terms is about 2-3 degrees C. Any more requires wicks or surface agitation to encourage greater than normal evaporation. This fan won't work very well with a canopy, it is meant to mount on tanks edge and blow across the length of the tank.
Thanks Roger. I doubted it would mount between the tank and canopy. The back of the canopy is open and it could be mounted there. Do you think the benefits of mounting it there would be worth the cost? I am just asking for your opinion as I know this is not what it was designed for.
In this case the canopy is the main problem. Honestly you would get the best result if you could switch to pendants and eliminate the canopy. Not sure how feasible that is but canopies trap in a lot of heat, for example, my tank ran hotter with 6 T-5's in a canopy than it does with 2 150W MH pendants. If your lights could be free suspended that would likely give you the most bang for the buck. Otherwise I would look at a bigger fan like you have because in this case the bigger concern is pulling the heat of the lights from the canopy as well as dissipating the humidity.
