Basically yes, focus on FC. Near the end of the SLAM you can check the CC, but right now FC is most important.1. Bring the FC to 20 again and that’s the only test I run now till SLAM is complete?
The results may be reliable, but CC can fluctuate, so don't rely on a CC number as an indication of your SLAM progress. Focus on the FC and save the CC testing near the end of the SLAM Process as one of your 3 SLAM passing criteria.2. Is my CC reliable? I thought it would be higher since there is breakdown happening?
Are those the smaller nicheless LED type? If so, just leave them alone.What do I do about the lights?
That should not bee needed. If you are concerned, a simple cleaning with bleach and water should suffice.Would I need to change my brush after this is done to not reintroduce the spores?
Could be. Some scrubbing may help to resolve it. Or spray a diluted mixture of water & acid before scrubbing. Always try a test area. We can come back to that issue later if it's stubborn.Is that calcium scaling, sited below current water level.