If that was intended to be the cyano test, I found that to be at least a semi-bogus test. My cyano will "pass" that cyano test just sitting in a glass of tank water dying it red by itself, no help from h2o2.
Try the dino test on the link I posted (the specific post where the procedure is described is linked in the first post) and see if you can at least rule dino's out.
BTW, the profile on that sand bed looks almost too clean. How new is this tank? Was it started with dead rock? And how are you controlling nutrients (if at all)?
I upgraded my 20 to a 40 in april. I was told to us brand new sand so I got a bag (not live sand). I used only the rocks in my 20 with the exception of 2 dry rocks. I also got a bigger filter an aqua clear 70 and 2 hydro Koralia 240. It's been like this since August.
As long as you don't think you fit the profile of the "typical" dino tank on my thread ("ultra low nutrients", carbon dosing, lots of nutrient export) and you're confident on your water quality (beginning with your RODI source) then I think I'd just keep waiting it out. May just be delayed uglies.
Have not actually touched it. I have stirred up the sand in the past so I can suck it up while doing water changes.
N03 0
Po4 0 I feel like I am getting fulse readings.
PH 8.2
Not sure I know what bacteria or nopox you are referring to
I would lay off of these until things feel like they are more in your control.
There's certainly no apparent need for them – that tank is CLEAN except for this mystery algae.
Agreed with Salty about feeding too....at minimum I'd switch to feeding daily, even if you don't feed more volume overall. But based on apparent conditions you have some room to increase the total amount of food your feeding as well. Just don't make any gigantic changes all at once. E.g. switch to feeding the same amount per feeding of pellets every 1-2 days for a few weeks to see how it goes. Then up feeding the same amount of pellets per feeding to once every day to see how it goes for a few weeks. Increase from there as needed.