Hi Anthony,
What kind of ponies do you have? I have 4 Brazilian that are nearing 1 year old, are you telling me they are already old farts?
And Super7,
I have finger leather,GSP,mushrooms, ricordea and macro algae in mine. They seem to prefer the algae though. It (feather Caulerpa) just appeared about 2 months after I bought it (it came out of a mushroom rock) and I really have to keep in in check, needs trimming every 2 weeks or so.