Help with new tank

[Hellboy]

Hello
I just bought a new tank that has been cycling for a couple days. I put in the substrate that is for plants. Then I put some rock pebble in and now I'm seeing flakes that feel like a waxy plastic. The filter is catching it, but not enough. Is it from the rocks? Do I have to start over?
I have a beta, dwarf ost sucker fish, dwarf African frogs and snails along with all my plants in my old tank currently.

 

[Aiken Drum]

Are these waxy plastic flakes floating around in the water, or on the surface or covering something in your aquarium?

Can you post a photo?

 

[Hellboy]

Surface floating

 

[Aiken Drum]

Did you rinse all the substrate before you put it in your aquarium?

Is that first photo a solid layer of this flakey substance?

Id try and remove as much as i could, scoop it off the surface with a jug, dispose of it down the sink, refill the aquarium and see if it returns.