Coco husk chips last a long time, but get moldy if watering isn't regulated. Since my plants go outside for the summer and sometimes get rained on for several days in a row, that's a problem. I put my first Nep in them and won't do it again. As for coco peat (coir), that stuff is awesome and I use it in the seed-starting and potting soil mixes I blend. It blows sphagnum peat away for those purposes. But it does degrade to a kind of amorphous goo and, while that isn't a problem when in a mix with other things that can provide structure, I wouldn't want to use it by itself.
Bruce in CT
Madness is something rare in individuals — but in groups, parties, peoples, ages it is the rule. Friedrich Nietzsche
if you can find substrate at lowes go for it
coco products aren't that great.
In my experience, they break down fast with fertilizer.
I am slowly changing all my neps to a mostly bark, pearlite, vermiculite, lava rock, mix with a little bit of peat for water retention. doesn't break down fast with fertilizer.
SK-8 OR DIE
Thats basically what im getting from this post. And your mix sounds right up my alley...
"It's easy to rip on cops, when you aren't the one needing saving"
Well I think there are grades of coc since it is widely used in hydroponics,
I have never personally tried it though...