Its just over the year mark. So i should keep my nutrients aroud where they are and add a uv? This has been going on for 3 + months now.Hmmm. Is this tank less than a year old by chance? That combo of measurable nutrient, algae and dinos makes me ask.
Yes on UV. 1 watt per 3 gallons. Super slow flow to maximize contact time. On nutrient, I generally recommend a bit higher but as you have algae going strong tells us that it is just getting bound into the algae.
If the biome is young -- and especially with a dead rock start -- I am going to suggest you just sit tight. Manage temps and salinity. Let the biome cook and do its ugly/beautiful thing.