Not possitve, but I think it has a bit less iron, the redder the more iron. I bet it's ok to use
your vals and swords should love this... and yes it is in addition to any water column ferts. your java fern might just perk up too since they won't be competing with your root feeders also.So is this recipe in addition to dosing EI?
I have cork screw vals, amozon swords, and java fern.
That's what's holding me back too. Seems like it would have to break down for the ferts to be released. I suppose vacuuming would get rid of it eventually...There was a link to the benefits of clay in ponds...I'll lookDoes the pottery/clay get used up too, or does it get left behind? Since I'm using a light colored PFS, I don't want to eventually have a buildup of red clay in the substrate