Under water Hygrophila corymbosa ''angustifolia'' has relatively narrow leaves which are grouped close together. Plants sold in the shops are normally cultivated above water, and have rounder leaves with larger gaps between them. [TROPICA]
Being the hygrophila enthusiast that I am, it came as no surprise that I decided to give this one a try. This species is relatively undemanding in terms of care like the majority of hygrophila species. I keep mine in a 1.8 wpg tank with fluorite substrate and weekly fertilizers and it's doing well. I see new leaflets sprouting from the stems almost everyday.
Very easy plant, I got it less than a week ago and it's already grown a couple of inches, I have it in Eco-Complete substrate with around 2 watts per gallon, doing homemade CO2 injection as well as flourish excel. It's doing great, I may add an image later.
I bought this plant specifically because I heard that it was quite easy (like most hygrophila species). I've experienced a lot of melting and die off in the the first month or so, but what is left seems like it may bounce back. I see small leaves growing in, albeit slowly. My tank is dirted with organic potting soil and I'm running 4 T-5 bulbs on a 90G.