humboldt mayan microzyme questions

i got the mayan microzyme stuff the other week, i mostly use all of the humboldt products, but have never used this before. The directions say to use 2 oz oz the microzyme and 2 oz of unsulphered molasses per gallon which i did and aerated it for 4 days i also added the humboldt grow natrual base nutrients to it, it was pretty foamy but i noticed these furry looking chunks floating all around in the bucket and it was covering the airstone just wondered if this was normal to see
i had it sitting in the basement about 5 or so feet from a glass block window and thought maybe it was some kind of algae that grew due to the light , oxygen and bacteria but idk and cant find anything about this stuff showing up anywhere if anyone has any ideas or knows what this is would be great

also i was curious if you can use any type of carb to feed the bacteria

How does it smell?

it smells fine not bad i read that if it smells bad dont use it