"Cats" in Semihydro?

[Ray]

Be careful of the fine oil-dry products in S/H. Small particles equals small spaces between them, allowing the surface tension of the water to hold droplets completely filling the voids - suffocating the roots.

Coarser is better.

[stefpix]

Ray, that is what I thought. I like to mix the oil-dry with other stuff.

[bullsie]

I've grown in s/h for several years now and find that the bulk of my Catt collection does well in it. But there are one or two I will come across that do not do well and never adjust - I've learned to repot into conventional medium as opposed to the 'compost wait' (hoping they adapt and get to a point of no return).