Discuss all topics related to saltwater / reef tanks.
- Posts: 375
- Joined: Sat Jun 21, 2008 3:12 pm
I believe it has alot to do with your bioload. From what I heard, if it's just corals with very minimal or no fish. You could go months without water changes. It also depends on how much your feeding. The owner of one of the LFS's only does water changes once a year on her 34 gallon. However, she doesn't feed her tank because it's so well established and only has three small fish in it, that she only needs to do water top offs. If you have tangs, then no matter what you'll have to do water changes because of their size, feedings, and waste.