I’m sure you have already but can you share you light schedule and QR code?I've been very happy with them. I ran them on the 180 for over a year and everything thrived. I almost invested in new lights for the new tank then thought better of it and just bought an extra k7 for a backup. I may need some fill lighting later on the WB but am going to wait since all the rock work is getting coverage and I only have a few light demanding pieces. They are very good bang for the buck IMO. I'll never spend the money for radions again. I have a couple of gen 4 xr15 and the k7s smoke them a par comparison.
Going to be taking my k7 mini down and putting a Pro III up