PH drop - new tank- nitrifying bacteria and others growing fast and manipulating carbon???

[Addicted2Reef’n]

Hello I have finally kickstarted my 125 build and it’s been on one week. I used dry rock in a heated brute for 8 months w fish heater and circulation. I moved that aquascaped heated rock and also placed active mature live rock rubble in sump and other baffles with bio pellets from 2 year system etc. I honestly can’t tell what is going on by my test,

 

[Addicted2Reef’n]

I have fed pe mysis pellets and 1 sheet or Nori. Added macrobacter 7. Added a rock from my year old copepod culture. Added rock 3 days ago and I can see them crawling on sump glass in fuge. I guess I just want to know why PH 7.2 but ALK 10.36 ? I have the rust red algae on top of some of rockwork and sand.

 

[Randy Holmes-Farley]

I don’t think pH 7.2 is accurate unless you are very poorly aerating it.