1. Tap water(Prime) has no effect on corals
2. By keeping water perimeters in check helps alot, this includes SG
3. Corals may not be so picky, when it comes to food. (Still testing)
4. Most important, by flood feeding, this triggers something in corals to open up 100%
Finally, I never thought I'd see the day, were I can say, we are now raising Dendronephthya, and instead of TRYING to raise them. Now, like a farmer , it's a wait n see game.