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25 watt heater in 1.75 gallons?

674 views 2 replies 3 participants last post by  crowntail lover 
#1 ·
My Betta Velvet currently lives in a 1.75 gallon tank. He needs a heater desperatly, and I have an adjustable 25 watt heater. Can I put it with him or will his tank over heat?
 
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