Good suggestion on the eBay search. If the Relay and resistor idea doesn't work, I will look into this one. As far as float switches go, I have had some bad experiences with them and do not trust them at all. I understand the weaknesses of the optical ones, but at least, you can place them sideways and improve their reliability.
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32 gallon Biocube, DIY LEDs and Triton Method.
My N=1 study of me, validated by me, and supported by completely anecdotal evidence, states that my advice is 100% correct, most of the time.
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