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Which salt are you using? That may be normal for your salt mix. Are you keeping coral or is this a FOWLR tank? If you are going to keep coral, what type? The answers to these questions will determine what you should do.
I use reef crystals and I have a mix of softies and lpsWhich salt are you using? That may be normal for your salt mix. Are you keeping coral or is this a FOWLR tank? If you are going to keep coral, what type? The answers to these questions will determine what you should do.
I use reef crystals and I have a mix of softies and lps
I tested nitrate and it was below 5 and I do not have a test for phosphate. I am having issues with cyano so I don’t think increasing nutritions is a good idea. Maybe I’ll get a new salt mixThose parameter look right for that salt mix, except for the Mag. Mag doesn't change very drastically in a tank, so my guess is that there is a testing error. Take a water sample to a trusted LFS and see what they say.
If you want lower ALK, you may want to change salt mixes. That is the easiest way to bring it down. If your NO3 and PO4 are in the low range, NO3<5 ppm and PO4< 0.05ppm, I would either increase your nutrients, or lower your ALK.
The ph might be off since I used a cheap api test kit. I did everything else with salfert so I trust those numbers moreIn addition to Mag, Ur PH is low IMO, esp if your alk is that high - something is def off here assuming the measurements are correct.
With alk that high and ph that low, that usually means you have a co2 issue. Can either try to increase air exchange if co2 is higher than your room's co2 concentration. If already sufficient air exchange with room, then that means your room is high co2 (common in winter)
If that's the case either run your skimmer air from outside, or add a co2 scrubber, or if you dose Alk with sodium bicarbonate, switch to sodium carbonate instead
With PH at that lvl, your LPS will weaken over a long period time and generally will be very brittle and fragile, leading to reduced life span and increased risk of sudden deaths from either minor stressor or unexplained causes.
Edit: I would aim for 8.2 - 8.3ph. Under normal co2 levels, alk of 9 should be ph higher than 8.3
ok cool - get a better test kit if you can - would still be good to know where its really at.The ph might be off since I used a cheap api test kit. I did everything else with salfert so I trust those numbers more
Alright so maybe I need a better ph test so I can trust the results and then go from thereReef Crystal's tends to have high dKH...12-13 in my experience. Ive heard gripes about some batches having mag about 1100. Might be one of those.
Since you dont have a lot of stony coral and aren't dosing slightly low mag won't bother anything. The low PH is more of a concern.