Please Help: High Tech 250g Hair/BBA 12 months old
Problem: I've been fighting BBA and Hair algae for several months. I've tried spot dosing peroxide (didn't even turn BBA red). Manual removal only results in regrowth (definitely a balance problem here somewhere). I checked TDS today for the first time in a few months and it's out of control. I definitely have some kind of precipitants floating in the tank despite hourly water changes.
Setup: I run an Apex ph controller set to drop pH ~1 deg during lighting period. Lighting period is ~6.5-7hrs using 4xEcoTech XR15FW G4 Pros over a 72x24x31" tank. Although most of the algae grows on my DHG Belem carpet, it also appears other places in the tank and my plants aren't getting what they need. I've been dosing PPS Pro High light suggested dosing from GLA forever in this tank via an Apex DOS spreading the dosage out evenly with the lighting period. As far as normal water changes go, I have a drain pump that turns on for ~7min (1g) an hour and the tank gets refilled directly from an RO/DI system.
Stock: Until last week I pretty much only had RCS, Amanos, and Oto's. In the last week I've added ~70 very small fish (most less than an inch).
ph: 6.7 with CO2, 7.7 (off-gassed)
gh: 80ppm (remineralized from RO/DI with Ultimate GH Booster)
TDS: crazy off the chart at 650ppm but I had just added K2CO3 in raw form
What I've tried: Last month replaced DI Resin in RO/DI, output still showing 0ppm. A couple weeks ago I did a fairly in-depth manual water change using a turkey baster to blow out detrius. Last week I cut off the CSM+B Micro nutrients (thought maybe the aquasoil got saturated). I just switched today from Baking Soda to K2CO3 for buffering. Definitely seeing slightly more pearling this week.
Thinking: Got into reading some old CSM toxicity posts. Not sold, but compared my dosing amounts to what others put on the "Share your dosing thread" and my balances are way off based on what they're using. I'd be interested in choosing one of Happi's custom dosing formulas and trying that instead of PPS Pro.