Originally Posted by Kingt82

I'm not sure what about pon that makes it different from aquarium rock. My only guess is the porosity of pon is higher. If you talk to anyone that has planted fish tanks they'll tell you that the colored aquarium rocks is garbage. Most of them use Carib Sea Eco-Complete or Fluval Stratum. People of been using stratum to propagate philodendron cuttings and I've had good success with it as well. I have not used it on a banana corm

Originally Posted by Kingt82

Hi PR,

I actually came across using PON from people that were growing Alocasias. I figured I would try it out since they're prone to root rot as well. So far so good.

Originally Posted by Kingt82

According to Lechuza PON's website it can also retain up to 40% of its volume in water.

Originally Posted by Kingt82

I guess I could have said that a little differently. What I was trying to say is people that do planted tanks (aquascapes) do not use the regular aquarium gravel. Aquarium plants don’t grow well in it so you can imagine non aquatic plants probably don’t fair much better.

Originally Posted by PR-Giants

How much water that a mix holds is important information.

To measure this I'll fill a one gallon container with the dry mix and weigh.

Then saturate the mix and pour out any excess water, after all standing water was removed I'll weigh it again and the difference in weight is the water retention.