Hello,
Okay it’s officially drive me nuts because I can’t seem to find a reason or typical reasons why a tank or my tank would go from 1.5 tablespoons of alk and calcium a day (literally every day for almost a year), to hardly any at all for over a week now. All corals sps look great fish are good, (lost a scoly in two days and my blue and green hammer is still mad but the frogspawn is happy as anything. My clam is doing well etc.
I’m curious if Boise massive temp swing had anything to do with it. 50s one week then high 80s-90s next? Possibly a low ph but that was tested like two weeks ago and was 8.1. Maybe add more oxygen to the tank? I can’t be the new uv steralizer because it’s not here yet. Heat is at 79-80 in the tank and has been for some time now. I feed the corals this week already twice, and last week. Haven’t added fuel in awhile and pretty sure my trace elements are not too high.
Maybe just needs a 30 gallon water change for the giggles. I do super small ones but usually 5 gallons once a month since I dose. Any one have this happen before and where they able to figure out why?
Off the wall questions. :- )
If alk and calcium additions are needed when the coral grows, that means the coral is growing less right now.
Has your local water department changed any chemical usage?
Has your LFS (where you get your water) had any RODI filter issues lately?
You do small water changes. Nothing enormous.
Possible new water is just enough to mildly annoy some of your corals?
Local city switched from chlorine to chloramine decades ago.
Didn't tell anyone at the time.
Didn't realize it would matter to some people.
Fresh water LFS found out the hard way it mattered a lot.
Huge die offs because chloramine doesn't dissipate quickly like chlorine does in a tank environment.
LFS needed a whole new protocol from just "aeration for 24 hours then good to use".
Paul B has mentioned his locak city water chemistry changes in the past drastically altering his RODI filter depletion.
So have many others.
Check with your local water department.
I don't remember what you did/didn't do over the fish/ich issue.
Any changes that might have been enough to annoy a few of your corals?
In spite of a few minor setbacks, it sounds like your system is still amazing. :- )
Don't go overboard chasing stuff.
:- )