Thanks for the plant i.d I have a place where they would fit just nice to replace some vallis that's getting out of hand. Yes, I also follow Alistair stuff with interest.
Here's my theory on it fwiw, apologies for going off topic slightly. People have a dabble with plants which doesn't go well because they know nothing about plants. They often find themselves at this forum and see people's co2 setups, fancy lighting and any problems usually get greeted with get loads of Fert in there and a yellow drop checker, which, probably is the cure as well as good flow to be fair. I think though at this point another set of problems come into play and before you know where you're at your hobby becomes a full time job!
Maybe wouldn't do any harm for people to understand plants and nature first before getting right into the supporting equipment.