Back to re-working a large tank. I’ve been in the hobby about 19 yrs….. 55 gal, 30 gal, moved a lot, and then I retired, put in a 300 gal and 100 sump …. And learned found the real issues but it was hard keeping it running. Last year the sump sprung a leak. The overhaul has taken over a year. I’m just getting all the parameters back on line. I have upgraded the sump to include auto top offs/ water changes. Yes, I used to do it manually. So, I’m back to a square one with a very developed tank. Excited to witness all the new developments.