Very nice write up, i just ended my battle with dino saturday morning. Crazy thing my No3 and Po4 where slightly high and had no affect on the dino population. Did a 3 day black out same way you did while also dosing dr.tims eco-balance, microbacter7 and at the end of night 2 did a 20% water change. So far im 4 days with the light's on ramped down and no signed of any dinos. Also added a refugium. Hopefully thatll keep things in check now.