Thanks everyone - I think I will add them to the bucket list. I was pretty put off by them looking like worms but seeing some videos of larger ones with colours thought they looked nice.
Updated plant list to try and keep a record somewhere. The corkscrew sword looks really neat - thanks to Mattia for knowing what I bought! I'm hoping it will take off.
First group are weeds, second think they might grow and last group is just hoping. One giant hygro left now - light too low for it sadly.
Vallisneria (narrow and broad leaf).
Alternanthera reineckii (red alt)
Java Ferns (narrow leaf).
Rubra (stem plants)
Echinodorus augustifolia - Vesuvius (Corkscrew Sword)
The CO2 in-line needle valves turned up and actually fit the CO2 line as well. Which is really great. Now I just need a line splitter that actually fits. On order still is:-
1 x splitter with needle valves on way from UK (fingers crossed!)
2 x cheap inline splitters with needle valves on way (backup).
Edited by Delapool, 15 July 2016 - 09:06 PM.