[canadawest]

I would be concerned with stray voltage or even electric shock when one puts metal plates with electricity flowing through them into salt water.

Don't think the fish would be too happy about the buzz either.

And how big would these peltier plate be? Even on a 33gal tank they would have to produce quite a bit of heat to dissapate throughout the entire tank. I suspect this project would be not applicable to my 100gal tank?

Otherwise I also am fond of the idea and would be interested in a finished product.