Could someone please tell me what a Mature media is?
felt embarassed to ask, then thought whats a few ppl laughing at me, hehe
Thanks
Zoe
It's a bit like me......Old, well used and has plenty of goodness in it. Can pass this on to others if treated right.
Ok enough of that

It is filter content (ie Foam media) that has be used in a tank for some time (at least a couple of months) and has gone through the nitrogen cycle. When it is placed inside a new filter alongside new media it can pass on the benificial bacteria growing in it to the new media. This will speed up the Cycle in the new tank when doing a (preferably) fishless cycle.
Be advised.....this media must come from a currently used setup (with fish) and kept moist. Transfere time must be within a couple of hours AT MOST (IMO)