I do weekly water 10% water changes. I feed every other day with PE Mysis and cyclopeeze. My dendros get fed everyday tho (pellet food for the days I do not feed the rest of my tank). I also feed oyster feast every other day (sometimes daily depending on my mood).
I have a ton of chaeto in my fuge.
In terms of additives, I don't use any yet. When I start adding more SPS, I will need to start adding stuff and I have bulk reef supply 2 part ready to go when I do.
Yes, the MP40 is a little more than I need. If this were SPS dominated, it would be perfect tho... but my tank is mostly softies and LPS. And as I mentioned previously, my acans aren't so happy with all the crazy flow.