it was just been having trouble with corals thriving so I'm tinkering a lot trying to get the right parameters for coral growth. The high phosphates were concerning me first at .78 then hovered @.40. couple of weeks ago I got the reactor which took time to dial in. Now the reactor brought phos down to like .10 And since then I have seen very few dinos. it seems like the reactor really helped lose the dinos quite a bit. I don't know if it's placebo effect but I'm not seeing any dinos since I dialed in the reactor .