Viewing post #359743 by KAMasud

Jojoe wonderfully fat juicy babies which according to colour seem to have just the right amount of light so far and I see plenty of space. Wait a while until the weather warms up then you can pot them on but no hurry. Let them do what they want for now.
As to this perlite rock controversy, every house has some type of acid for cleaning purposes. Pour a little on what ever rock you find and if it fizzes violently, then leave it alone. If there is no or slight reaction . Greg how does this scientific explanation sound to you instead of going round and round? You do not want calcium carbonate and calcium carbonate in whatever rock has to release carbonic acid on contact with acid. Carbonic acid is what you find in fizzy drinks and a no, no in the gardening world.
Regards,
Arif.