When to harvest chaeto

[Maize & Blue]

When I first put my keto in, it was about the size of the softball and it tumbled, and everybody was amazed how much it tumbled. But after a couple weeks of my AI blade refused light it grew so fast and thick that it didn’t have any room to tumble. Now I harvest about a third of it every two weeks. But I’m still struggling with high phosphorus. I’ve cut back on feeding the fish and corals.