Definitely water quality issues. Phosphates are high right now. Just started my rowaphos again today. Only used 10 teaspoons so I wouldn't strip the phosphates too quickly. Will let it run until Monday. It should be exhausted by then. Next time I will add 20 teaspoons until exhausted. Then I will find what is the recommended media for a 300 gallon total water volume and start running that. Will start chaeto and dragons breath this week with some pods. I thought if it was too much light they would just go to a spot where there isn't much light. I do think my light schedule is kinda long