Algae problems, Cyano or Diatoms?

[Humpty]

The phosphate test is tough to distinguish the exact shade sometimes, but it always tests between .25 and .5. It been like that since I got the test kit.
I don't think its a major problem right now but I know cyano in a freshwater tank can go from minor to major very quickly.
I would like to stay away from chemicals like chemiclean unless no other options work for me. I not a big fan of adding chemicals, I would rather adjust some things and see what happens.
I've heard about the vodka dosing but have never tried it. I get very busy in the summer and would have a hard time dosing everyday. I will do some more reading on the subject.

For now I made some adjustments to my chaeto and lighting in the sump. I've turned the output in the sump to point at the chaeto which is keeping it tumbling. I also moved my powerheads and outputs in my main tank to point towards some areas that have the most cyano.

I thought that turbo snails don't eat cyano but its mowing down a lot of the red algae on my glass. That's the main reason I was not sure if it was cyano or not.