Hello - I have been looking on the internet and can't find an answer to my question that I am confident enough to follow. I have 5 seedlings, now around an inch to two inches tall. They have germinated in Root Riot, which the shop said I can 'drop' into my pebbles (Wilma big 4 Hydro) Some have roots coming out the bottom, one with secondary roots off that. Some do not yet have roots protruding. They are on my windowsill in a propagator (I had an aphid and spider-mite risk from my chillies on the balcony so I kept the seedlings covered to be safe). My Grow tent (1m1m2m 600w bulb, fan and carbon filter hanging inside) will be ready this evening, was missing a bits and that's now resolved. When in your opinion or better experience would you plant the seedlings into the hydro system, if not already. Thanks!