The Kraken
Aquarium Advice Apprentice
- Joined
- Mar 15, 2011
- Messages
- 41
My 4 month old reef tank is doing great. All animals seem to be thriving. Most corals seem happy. My new elegance coral seems to close up frequently though. I have been having trouble with my Reef Octopus 150 Calcium Reactor. My calcium levels have been low for the past 3 weeks (like 200-250 low). I'll start dosing calcium supplement until I can get the reactor figured out. However, my Kh is always low, like 4-6. Dose with Reef Builder carbonate alkalinity raiser twice a week and can't get it above 6 to save my life. The elegance coral is only a week old in my tank but it has never been fully open after the first two days of being in there. Any suggestions? What's a good Calcium supplement? What's a good way to raise the Kh and keep it there? I do water changes about every 2 weeks, 20% (30 gallons). I use only RO/DI H2O. Thanks for your help.