AquamanE
Active member
I use API for Ca and Alk. I have a Hanna Alk that i use to make sure API is correct and so far so good.
API is cheap and IMHO accurate for Ca and ALK. You will get many on here that will disagree with me with API, but again, I only use them for CA and ALK, and since ALK is my most tested item, 5-8x per month, I find them accurate enough (ALK, and CA API is like $5 at DFS online). I use the Hanna to double check. I applaud those that want to spend more!!:lol:
For Mg, and Nitrates= Salifert
For Pho4= Hanna
API is cheap and IMHO accurate for Ca and ALK. You will get many on here that will disagree with me with API, but again, I only use them for CA and ALK, and since ALK is my most tested item, 5-8x per month, I find them accurate enough (ALK, and CA API is like $5 at DFS online). I use the Hanna to double check. I applaud those that want to spend more!!:lol:
For Mg, and Nitrates= Salifert
For Pho4= Hanna