I have several small plants in their original slit-plastic 2" pots still in the original rock wool they were in when I bought them over a year ago from a regional store. They turned in to a low priority and I never repotted them. They would have been in gravel filled pts anyway. So they've been doing Ok in my 40 gal. One recently got dislodged during a cleaning, which has prompted me to consider finally repotting them. Any reason not to get new rock wool to use as an inorganic medium?
I have a question.
Isn't rock wool the stuff they use in insulation?
Jay
Google says yes. It's mineral, not organic. I gave up on my few plants but will be using my rock wool for a hydroponic greenhouse garden try.
Aquarium Coop makes a fake cave with a hole on top. Drop your plant with the rock wool substrate into the hole ... and you're done.
At my age, everything is irritating.