Posted: 22/06/2015 at 08:32
Never been convinced about water gel/crystals. For me they dont seem to make any appreciable difference.
I use perlite too.........it is ideal for cuttings and seeds so does the job. Hiwever, health wise I think there may be a problem with the associated dust.
increasingly there are announcements about the safety of just about everything we use in the garden or home. We will always be guinea pigs........