How has the PH been on the BRS160? Still not using the co2 scrubber? I agree with rglewis, PH is a huge concern for me. I have an outside line for the protein skimmer air intake, I use kalk, have an ATS, have a huge area of chaeto with the Kessil 380, stagger tank lights with the algae lights, and in the summer I have to add soda ash to keep alk mantained (since house co2 drops and there isn’t enough to combine with hydroxide to maintain alk alone ), and my PH is around 8.2. Actually right now, it is 8. Windows and doors are closed for more months in the year. Without kalk, I think my PH would drop drastically.
Maybe this is where the hybrid perspective comes in, calcium reactor or kalk, along with some parts of triton. For me, the ATS, chaeto, and protein skimmers are my only nutrient export, I haven’t had filter socks for years, so I’m half way there. Just can’t see me moving to the 4 part system due to PH. But I do use the ICP tests to show me what I am lacking outside of the 3 major elements. For example, I think potassium is the 4th most important major element. So, I dose that, along with kalk and magnesium. And iodine too.
Thanks for all this great info BRS, all the videos you have done, and all the experimenting. I am improving as a reefer, and that’s mostly due to the great info coming from you. All that kalk chemistry talk above was from your BRS160 episode on kalk.