Water changes

[ReefOcean]

Originally Posted by Aquattro

Water changes replenish all the elements used by the system. The salt has dozens of components, and you only replace Ca and CaO3, maybe Mg. What about the rest? It's there for a reason. Reefs need strontium, potassium, etc. you don't replace those. While minimal, they're essential (they wouldn't just add it for fun). It also dilutes the DOCs (dissolved organic compounds) that affect the life in the tank.

Again, my question is why not do a water change?

Fair enough but you can dose them. People dose Calcium right? Almost everybody with SPS...

I didn't do water changes just to see what would happen to my parameters. Just like I used a crappy Chinese LED unit to see if I could grow SPS. To see for myself.

My hypothesis being, that the stringent water change practices people promote are circumstatial and hearsay. I do agree that water changes do have merrit and in most cases required at least once and a while.

You call me lazy, but stocking a system that can't support itself would be considered what?