Parameter review please!!

[konatown]

Hello everyone

I have been reefing for quite a while now, I don’t even test parameters much anymore. I can see when my corals are happy or unhappy. I do run some tests every 6-12 months. I just transferred into a new tank about a month ago, and I do a water change monthly or so. I decided to do some tests before my first water change, and wanted some input on what you all think I should do. Should I increase water changes, or start dosing again? My calcium is pretty high (new sand maybe?) and alkalinity and magnesium seem low. Nutrients are low which is surprising to me.

I have literal square footage of gsp, and a giant Duncan colony I grew from 3 heads. 4 small fish. No skimmer (which now I know to hold off on getting another one for a bit). Feed frozen daily mainly for my wrasse

Also I use reef crystals salt, tank volume is about 55gal. Live rock is about 15 years old. Here are my parameters:


Po4 - .25 - salifert test
No3 - 0 - Red Sea test
Calcium - a little over 500 - salifert test
Kh - 5.4-5.7 - salifert test
Magnesium - 1100 - Red Sea test



Video of my tank

 

[KrisReef]

The coral looks fine, and seems happy with the parameters.

I would increase water changes or dose alk to slowly increase the alk reading for the long term health of the Duncan’s.

My understanding is that NO3 is consumed in the metabolic processes that will lower PO4 levels, so adding an nitrate source could help reduce PO4 levels and “balance “ the tank parameters more towards ocean levels?

If the coral is happy I would be slow to make changes, the coral and fish look fine.

 

[Uncle99]

Hello everyone

I have been reefing for quite a while now, I don’t even test parameters much anymore. I can see when my corals are happy or unhappy. I do run some tests every 6-12 months. I just transferred into a new tank about a month ago, and I do a water change monthly or so. I decided to do some tests before my first water change, and wanted some input on what you all think I should do. Should I increase water changes, or start dosing again? My calcium is pretty high (new sand maybe?) and alkalinity and magnesium seem low. Nutrients are low which is surprising to me.

I have literal square footage of gsp, and a giant Duncan colony I grew from 3 heads. 4 small fish. No skimmer (which now I know to hold off on getting another one for a bit). Feed frozen daily mainly for my wrasse

Also I use reef crystals salt, tank volume is about 55gal. Live rock is about 15 years old. Here are my parameters:


Po4 - .25 - salifert test
No3 - 0 - Red Sea test
Calcium - a little over 500 - salifert test
Kh - 5.4-5.7 - salifert test
Magnesium - 1100 - Red Sea test



Video of my tank

Based on what I see, everything is very happy so either it just runs great in that slot, or your test lie, which is also possible. Be wary of Red Sea tests.

Those softies are a big user of your available nutrients.

And very nice!

I’d leave that except Alk, check that again with a Hanna checker, I’d like that to be 8-10dkh.

 

[Randy Holmes-Farley]

I’d boost the alk slowly to 7 dKH.

I would not bother measuring magnesium due to inaccuracy, but if you really think it might be that low from a long time of adding alk and calcium without magnesium, then try that kit on some new salt water.

The phosphate is fine.

I’d boost N if it was my tank.