Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
First time using kalkwasser as well and definitely loving it, got a bit scared after ph getting a higher than 8.3. But thanks God everything happier at this ph!! And with alkalinity I think every system reacts deferent to another, my acros did not look good until I was at 8.5 dkh. I guess light...
I would keep the leds as well. And I started with 6 hours a day had to cut it bit to 2 of them 4 hours and the other 2t5 2 hours on different timers, then ad time weekly half hour or full hour depending how your coral behaves
Good luck