Additives in the aquarium

[titus]

Hello,

I was actually curious what RO filtration unit you are using. Do you monitor any silicate, phosphate, or RO TDS? Considering your reef is already 6 months old, you are using RO, and running the Prism on a relatively small volume of water, I don't understand why you are getting diatom and stuff. How long have you had your Prism for?

Titus