Yes. One stone kill 2 birds. If your intention is more to cool the house, then it should be worthwhile.
If using a 60W fan solely to cool the tank, then it is not worthwhile. Those DC fans we commonly use to cool our tanks are 1 to 2 W. Much more savings on electricity.









Thank.... YOU
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, I also put into some ice-cube and with this 'big' fan by the side (see photo) to see how low the temp can go. So far, only go down by 2C and temp is about 26C.

the shrimp tree...


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