Stringy algae growing on chaeto

[Dmolinini524]

I have a nuvo 30l AIO with a drop in fuge in chamber #2 growing chaeto for some reason there’s a stringy/slimey algae growing on my chaeto. Chaeto still grows and theres not much algae in the display at all not sure why this is happening?

 

[Mikedawg]

Given your very high phosphate level, it may well be GHA.

 

[SashimiTurtle]

Most likely hair algae. I've read dosing iron will help the chaeto beat out the GHA. Also good flow thru the chaeto to make sure it stays clean of detritus will help.

 

[Dmolinini524]

Most likely hair algae. I've read dosing iron will help the chaeto beat out the GHA. Also good flow thru the chaeto to make sure it stays clean of detritus will help.

How do I get more flow though if it’s an all in one tank I mean I have the return pump on the highest setting