A few months ago my zoa colonies were doing well and multiplying, but I started to lose some randomly. I am wondering if it is zoa pox, but also I noticed that I have red planaria as well hanging out around them. I thought maybe they weren't getting enough light so I turned up my radion gen 3s. They used to peak at 40% and now they peak at 50% for three hours a day during the cycle. Please let me know if you see anything. Here are some pictures.
Planaria
Planaria