Diatoms/brown Algae

You could do what others said and shorten your photo period but it’s not really solving your problem since the tank is establish. Are you able to adjust the colour of the light or intensity?

Do you have any floating plants? Salvini,duckweed,hornwort? There may not be enough competition for the algae in your tank. Nearly all fast growing plants will reduce the effects of algae. Unless it truly is an over abundance of diatoms.

The tank has java moss, java ferns, Amazon swords, frogbit , and water lettuce but the floaters can't seem to stay a good coverage because the convict cichlid loves to eat them

I believe I can adjust the intensity of the light as well. I really appreciate the help

 

I first noticed it really bad when I added the full spectrum light about a month ago. My water is public that's why I add it to a bin then treat it and let it gas off a day or two before it goes into the tank

I first noticed it really bad when I added the full spectrum light about a month ago. My water is public that's why I add it to a bin then treat it and let it gas off a day or two before it goes into the tank

This makes me think it is a lighting issue.

As I suggested yesterday, I’d try cutting back your light time to 5 - 6 hours each day and see what happens.

Sometimes figuring these things out is a process of elimination.

 

I'll try that and lower its intensity. Thanks for all your help