My tank is too cold.

[Mr. Misha]

As Deborah already mentioned, 78 is still good but I think I know what you're saying.

If you're worried about the temp dropping any further on a colder day or during the night, just switch to a 100 watt CHE (ceramic heat emitter). For now you can connect it to a dimmer and dim it down while it's still warm and then adjust it if you need to once it gets colder.

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