[dougolasjr]

Thanks for the info. I was afraid they would get buried and not be able get out, and I really didn't feel like picking them all out to add a sand cap.

 

[dougolasjr]

The substrate is eco complete. I was going to use black blasting sand. How long would 1/4-1/2 inch stay above that approx.

 

[dougolasjr]

Would black gravel then be a better option. I wanted to try and find something black I can get locally today to try and cap the substrate.

 

[dougolasjr]

I placed Osmocote plus in the substrate... obviously not deep enough and its leeching out in the water. I am hoping adding more substrate over will alleviate the problem.