01-22-2008, 07:07 AM
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Yep, even for a 55g, I spend about $10-15/month on R/O for top-off depending on the tme of year. Maybe $10-15/month on food. Depending on how often you test and what you test for, the testing kits last about a year or two, so if you purchase all of the necessary API test kits, thats about $50 total, Figure thats about $4 per month at the most. The chemical additives should last about 6 months so figure another $10 per month on that (depending highly on what is being kept. I add Strontium & Molybdenum, Iodine, Essential Elements, B-ionic two-part, and Kalkwasser to the top-off). Add in another $10 per month for R/O for water changes. Finally, I buy Reef crystals 160g mix, I keep my SG at 1.026 so I figure I probably get about 150g out of it, that takes care of 6 months of water changes at $30 per bucket (dfs price), thats another $5 per month.
So I figure $50-$60 per month to operate a 55g softies dominated mixed reef tank with a 30g sump.
10 small fish, 2 mithrix crabs, yellow coral banded shrimp, peppermint shrimp, about 10 blue leg hermits, 5 zebra reef hermits, 1 red-legged hermit, and a multitude of snails, LPS corals, and soft corals.
And if you want to get technical, Based on the equipment I run, I believe I figured the tank to be $14-$20 per month on the electric bill.
hope that helps