The best size I have found is 1/4" to 3/8" pebbles.
Trav.
--- In
barrelponics@yahoogroups.com, "dexter_sativum"
<dexter_sativum@...> wrote:
>
> may i ask the best size of gravel to use in our growth bed? which must
be better? the smaller gravel or the largere? which is better,.the
gravel with rough texture or the gravel which has smooth texture?
>
> dexter
>