I wasn't planning on going quite as aggressive on the water change volume (although at 5gal/day that's just about a 10% weekly change on a 300G), but the idea of using a salinity meter to drive the ATO makes sense. Any suggestions for ones you found work well in that application (ie on 24x7...
Just read Mike Cao's article on Advanced Aquarist. In it he mentions using a LiterMeter III to do automatic water changes. I'm moving from a 120G to a 300G system, and this sounds like a great idea, but I've a got a couple of questions ..
1. I currently use an ATO to deal with evaporation...
