Mine is about $40 and that is four people in the house and me doing about 80-90 gallons of water a week with the tank....
(prob until they catch on)bangerang103;1465218; said:What is your water change schedule?
1. how much do you change a week?
2. What size is your tank.
3. What kind of rays do you have in the tank? (plus amount)
4. What are the ray's sizes?