Spots on my leaves

[Numoney75]

I'm am a beginner grower and my fan leaves have spots on them . Can someone please help me identify the problem

 

[Nugg]

Yep..I identify that there are areas of discoloration on leaf...

 

[916Fisherman]

Check for pest

 

[Numoney75]

Check for pest

I found some little gnats

 

[916Fisherman]

Gnats are usually not an issue. Check the underside of leaves