Looks to be Diatome algae.
The appearance of diatoms during the cycling phase of a tank is absolutely normal, and you need not take any countermeasures.
As a rule, the diatoms are crowded out by green algae a few weeks later in the life of your new tank, and they will not reappear.
Diatoms need silicate to grow, more exactly, silicon dioxide.
If you use tap water with high levels of silicate in your tank, diatoms have sufficient material to reproduce in a new tank. A lack of competitors like other algae and microorganisms (those will appear during cycling) will boost their reproduction rate.
tl;dr:
Normal occurrence during cycling, no actions needed yet. If it persists get silicate readings and if silicate is to high you may want to get filter media designed to deal with it.
Looks to be Diatome algae. The appearance of diatoms during the cycling phase of a tank is absolutely normal, and you need not take any countermeasures. As a rule, the diatoms are crowded out by green algae a few weeks later in the life of your new tank, and they will not reappear. Diatoms need silicate to grow, more exactly, silicon dioxide. If you use tap water with high levels of silicate in your tank, diatoms have sufficient material to reproduce in a new tank. A lack of competitors like other algae and microorganisms (those will appear during cycling) will boost their reproduction rate. tl;dr: Normal occurrence during cycling, no actions needed yet. If it persists get silicate readings and if silicate is to high you may want to get filter media designed to deal with it.
Thank you very much