How is my chemistry looking?

[reefernate]

Recently started tracking more intently my tank parameters. I am having a hard time figuring out how to time my dosing and testing to maintain alkalinity 7.7-8.3 as you can see it swings from 7.3-8.3. I am also unsure exactly how much my tank is taking up Alk and Ca.

My best guess is it is around 0.5dKH a day and 5-7.5ppm Ca a day. I am dosing 5mL of reef complete every two days but decided I am going to dose 2.5mL every morning and test at night around 8pm.

With alkalinity, I feel I should dose about 5mL every night. And then I will test alkalinity nightly and adjust daily dosing as I see how the levels are. I think my issue is testing and dosing at various times throughout the day. If anyone has good tips on how to really get down dosing and testing in an accurate manner let me know! My guess is to test each parameter at the same time every day and start dosing. not to chase the number I want right away but dose a consistent amount daily and adjust the dosing as the levels get too high or too low.

 

[Uncle99]

What size water volume?

I dose on the hour, or at least multiple. Many smaller hits better than larger.
That creates less flux. Same with everything, temp salinity….etc….work towards keepin them in the traditional bands as well as the smallest change you can get based on 24 hours.

Can you do that? Can you be more frequent? Do you use an ATO?

I set Alk to what makes sense, test daily, then adjust the dose until she holds reasonably at your desired level, but I use Seachem Fusion 2 with its partner, Reef Fusion 1 in lieu of Reef Complete, in a 1 to 1 dose based on Alk needs.
For me in 200 gallons, heavy stocked SPS dominant, that’s 4ml per hour of each, 24 times per day.

On your chart, MG is low, bump that to 1350-1400ppm, will take a bit of product to get it there, but then, should run about 1/5th or 1/6th of Alk, but, can be added daily at one time if you wish.

Then for testing, just once per day but same every day. Look for trends rather than trying to react quickly.
Especially nitrate and phosphate where weekly to week trends are better and easier to manage.