I might be able to tomorrow... I did a W/C today, so it's full up. If I reach my arms in there, itt'l overflow (I'm a big guy)Looks like you could have a Sagittaria subulata...which would account for why your "vals" are not growing
Any chance you could uproot one and get a pic?
Pic tomorrow maybeDo you have a picture of your DIY light set up by any chance?
What sort of dry dosing schedule were you using? (Amounts and frequencies)
OP already answered that they were about a half a year old. That might account for slowing growth now, but not for the first half year. That's why I'm hoping for pics of the hood set-up. Might be some clues there. WPG is a fiddly measurement when you don't know exactly how people have stuff set-up.Everything you are doing seems OK. How old are your bulbs??