cyano is bacteria and appeared as blue green slime algae. also pink and it has bubble on its branches. Diatoms are brown
Diatoms is food for beneficial bacteria and they don't grow from phosphate or nitrate. Diatom is natural food group and its a by-product of light and they grow in tank and bacteria consume it. They appear in new tanks as tank get mature. it looks like brown color without bubbles.
Dino is bacteria and appeared as brown slime algae with bubbles.
show us some pictures with white light.
0.05 phosphate is not accurate when you have slime algae because they consume phosphate before you measure it. remove all algae manually and test after 1 hour.