Would anyone be able to help identify this !!

Tank age: 6months Tank holding: shrimp and 1 small pleco (25 gal)

Water condition: Stable. only have test strips currently. I have ordered a full test kit.

Feeding: organic bee pollen and Algee wafers

This white stringy algee(?) has been in my tank for about a month now. I did a 50% water change immediately. Within hours it was back.

I’ve done two 50% and one 15% water change in the past month, the 15% being today and the white algee(?) strings returned almost instantly.