What level must i fill the 2 litre bottles with medium
 

Can someone please tell me to what level must i fill the 2 litre bottles with medium i.e. Gravel and do i need to use a gauze netting to stop the gravel from falling through into the pipe system. I am also new in the game and at quite a disadvantage because there is nobody that i can contact locally here in south africa to help me with my problems. If they do know they keep it a secret. I am very interested in growing exotic ferns,but unfotunately can get any info. Locally. Can some one please help????

Email address wolfdog@iafica.com

kind regards mike seeger

Almost to the top. And yes a paint screen can be used or what I use a 16 oz solo cup with holes.