Help Identify Algae And Cause

[DesertStrike86]

40g breeder l
Ehiem canister
Fresh and plant 3.0 led fixture
25% percent water change every week
Dosing excel once right after the water change
Dosing potassium once after water change
Dosing flourish once after change.
3pm to 9pm light schedule...

that’s the schedule for the tank.

any ideas? Thanks!

 

[DesertStrike86]

That’s my in-laws thank that we’ve been fighting .... my tank on the other hand is doing very well thanks to the E.i method ....

 

[DesertStrike86]

Any ideas?