water heater malfunction

  1. Q

    Having trouble with Fluval M series 300 watt heater

    I've been having trouble with the Fluval M series 300 watt heater. I bought it less than a week ago for my red eared slider. I know the heater is meant for a 80 gal tank, and I currently have a 29 gal tank - but planning to upgrade to a bigger tank within the week and didn't want to purchase a...
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