I will be doing all tests again tommorrow so will post them also..I have noticed MUCH more pearling since upping co2..
Keep a mental note about the effect of the CO2 on the plants.
You'll need it later and shall doubt it once again(most do at some point).
You can also do more frequent water changes+ dosing to stay on top of things.......then you can see if it's nutrients/CO2.
If you do a water change, do it about 1 hour after the lights come on, the plants should pearl very intense at the end of the day, this makes a good reference for future issues.
Here's what L cuba should look like when happy:
This is about 100 micrmol at the top, about 40 at the sediment.
Also, make sure you calibrate those test kits, otherwise, you are guessing
You waste your labor/time and the cost of the test and end up with data that really is not confident.
CO2 has this issue and is much harder to calibrate and get somewhere, so focus on what you can measure and do it well.
A simple large WC, say 50-80% followed by dosing known amounts of ferts, is reasy to know what ppm's are, even without test kits.
Keep the current up for the surface, about enough just not to break the water's surface, this keeps good O2 and prevents stress for fish.
That should give you more wiggle room.