The 120 mixed reef has reached some level of equilibrium, in the past 6 months. Cyano and Briopsis were becoming a major issue towards the beginning of 2019. I decided to run two courses of Fluconozole back to back, followed by two courses of chemiclean. I do not make a point of using chemicals / antibiotics in my systems, but I felt it time to take care of the issue, once and for all.
I did the same thing with the downstairs rack and rubble frag system, so there was no chance of cross contamination. I have not added an new frags, snails or crabs since my last update, in order to prevent re introducing any bad stuff.
I am happy to report that as it stands, the systems are both 100% Briopsis, Hair Algae, Cyano, Aptasia free! It pays off, eventually. I will post a video below, outlining my ordeal in getting rid of the hair algae. There is a lot more info there.
As far as fish, coral and nutrient uptake, I am up to 140ml of BRS two part per day. All of the SPS is coloring up and growing fast. The PH in my system has been hanging around 8.2/8.5, due to the house being more open in the summer. I find this always results in increased coral growth Alk/Cal/Mag uptake. I have started making a point of monitoring PH closely with a newly installed Pinpoint meter, and adjusting ALK/Cal dose accordingly.
NO3 spiked to 80ppm, a few months back. I did not notice a huge difference in overall tank appearance. The issue was due to the hose in the NOPOX dosing container coming un lodged. I fixed the problem, which reduced overall NO3, but resulted in a pink slime outbreak in the sump, clogging up the protein skimmer and GFO pump. NOPOX daily dosing was cut in half, raising the NO3 to 30, but eliminating pink slime in the sump. Since there are no adverse affects at the current NO3 level, I will continue running the system at these levels.
The tank is reaching the two year mark. In past systems, this has been a point where the tank starts to really stabilize. There is a good population of sponge in the the overflows and sump, taking up excess nutrients and the biological system, especially beneficial bacteria are settled in and functioning at optimum capacity. I do dose a bit of micro bacter 7 every week, with the skimmer switch off. Water changes are 10% bi weekly, which I have no plans to do differently. I am currently dosing Red Sea Trace, on the off week, based on calcium uptake. BRS has a good video on doing the math for it's two part, based on the Red Sea instructions.
Here is the video showing the process of reducing and eventually eliminating HA, in my reef.
Picture update will be next.