i know the leaf structure changes when they are used as floating plants but they still dont look like Water Wisteria - Hygrophila difformis to me the leaves are way too big and not shaped enough thats what i think but could be wrong, here is images from google
I've got a pic of mine, just need to wait 5 mins on batteries charging as camera died just after taking the pics LOL. 95% sure its the same stuff as mine, and mine is indian fern.
many thanks for your replies.. indian fern it is...
i thought id thrown it all out of my tank about 3 months ago, must have left the smallest of bits left because now i have enough to cover the surface of 2 x 3ft tanks!!