75 Gal w 30 Gal Sump Reef(I told you guys Im back)

[bauder1986]

Originally Posted by LifeIsGreat

What's the grain size in your sand bed? According to this experiment fine sand, 0.2mm and less, is said to reduce phosphate somewhat. Maybe something to add to the fuge?

Well it's definitely around 0.2. It's pool filter sand(silicate based) and yes. Fully rinsed for those that are concerned for the silicates leeching into the water and feeding diatoms.

Anyways, phosphate hasn't been my issue. Always been near zero. My issue is establishing the balance between phosphate and nitrates. I have been coming up to many studies stating that it's not necessarily the need of having zero nitrates and phosphates. But having a balance between the two components that allows for stability in the system.

Having just gfo caused an imbalance. So I'm going for the refugium method to tackle both at the same time.

[bauder1986]

As for the cyano. It does try to smother the corals. I'm watching it closely to clean it away from the rocks. And sometimes I have to help the Nessarius snails stir up the sand abit and clean it off. But I do want to help pulling the cyano out. It competes with the healthy bacteria for nutrients. Plus it looks ugly.

I do want to add more sand to the fuge though. I have about a cup in there. More would be a good idea