Cost To run My tank

[2Wheelsonly]

Also, what are you paying 40$ for water for? What size tank is that?

I change 180g a month, and with my ATO I make quite a bit of water a month. I don't calculate how much water my RODI wastes but I tracked that my water bill went up $38 per month.

My tank is 300g but that does not include my sump. I have 2 55G water change bins (1 for fresh and 1 for salt). I change 45 gallons weekly.