I would fight bryopsis first. It’s easier to get rid of and will help you with fighting Dino’s. 1) it takes only 14 days, 2) it will stop consuming all the no3 and po4 that you will need to fight Dino’s 3) if you dose no3 to beat dynos, bryopsis will explode in growth. I had dynos, no bryopsis, I started dosing nitrates and feeding more, added a UV, started dosing microbacter and syphoning our dynos from the rock with a smaller 1/2” tube into a filter sock into my sump, so I removed all the dynos from the rock every week, and my UV took care of anything that is left in the water. Once dinos dissapered my bryopsis covered literally everything because my tank finally had nutrients. I dosed flucanizole to get rid of it. Dino started coming back a bit.