Blog 12/14/18: What is Stability? Stability is a precarious term. I keep a log of all activities in my tank by date. It contains all dosing amounts, general maintenance, equipment adjustments, water parameter test measurements, and schedule of things I do regularly like water changes, adding Biodigest and Optim, harvesting my algae scrubbers and dosing’s. When my water parameters have been consistent for months on end and my equipment adjustments are minimal, then I've achieved the stability need for growing SPS coral. I know that any changes to my light profile, flow, temperature, alkalinity, calcium and dosing amounts must be gradual and implemented over months and not days. There are always slight parameter fluctuations, but small is okay. If you're adjusting your calcium reactor or trying out Kalkwasser, you're tank probably isn't stable and will have some dialing in swings. If you're still adjusting your light cycle, you're probably not stable. If you're still moving your rock scape, you're probably not stable. If you're still adding equipment, you’re probably not stable. Dialing in a chiller, not stable. Not dipping coral and quarantine, you’re probably not stable. Do have provisions for power failure, if not, you’re probably not stable. Do you add every chemical treatment you “read about” to head off parasites, disease, algae, nitrates, phosphates, then you’re probably not stable. Do you ICP/Triton test to determine chemical composition of your water? If not, you probably aren't stable. And, when you get stable, if you're the OCD guy that has to fix everything this instant, then you should reconsider buying SPS coral, because you’re probably not stable!!! When you’re are adding natural predators and harvesting algae and feeding to make small parameter changes, making small adjustments, fine tuning, have patience, then those are indicators that you and you’re tank are probably stable!!! Not so precarious, anymore!!!
You've changed salt, had temperature swing, used Vibrant, used Reef flux, lighting issues. Too much, too soon. Those items will cause RTN and unhappy coral. I'd get to the point of stability again, then, do a coral restart and next time you have issues, which happens, get back on track slowly. Look into more natural resolutions other than chemical treatments. Those treatments are for smaller tanks that have much less to risk.