Alkalinity at 7-7.5 meq/L

19.6-21 dKH

350-375 ppm

Water changes?

 

Are you sure you tested properly? What was your test method (brand, kit type)?

If those results are correct, you're going to cook things.

 

That would be a good idea along with first double checking your test kits. If the kits are correct then make sure your change water is within parameters and then re-check your dosing routine to make sure you don't have this happen again.

 

seachem titration. Test strips also show >300. This explains why i cant get coraline growth.

 

Brand new kit.

 

What product(s) have you been adding?

 

Added baking soda to adjust pH awhile back. That's undoubtedly the cause. I won't be doing that again. I just need to get it down.

 

A 5 gallon water change and a 3 gallon top off got it down to 4.5. Another water change should get it into the ideal 2.5-4 range.