Have already used last year from my local hardware store for growing various vegetables the coconut flakes. They are really very easy to handle, just briefly put in a cup of water until they have soaked up (you can tell because they like a brioche to rise) and then press with the center in the hole the seed, wipe some coconut over it, in a greenhouse or equivalent set, done! The reservoir of water has passed on the Südfensterseite with really nice sunshine about 2 days, then I just had something nachschütten into the tub of the greenhouse, the rest have the coconut plates brought himself.
For amateur gardeners I give here a clear Kauftip. The price was also ok!