First let's start with the water lettuce. I got this a few months ago and it was doing great. Soon, it exploded in number and this is when everything started going downhill. The leaves started becoming small and yellow at the tips and the snails started eating the the yellow leaves. At first I thought it was too much light which doesn't make sense to me now as people keep them outside. My next thought is water flow which may also be causing shedding roots. Right now I am thinking about removing them because of the constantly shedding roots.
Second there's the crypts. I have never had any luck with these in my tank and am not sure why. All my other plants are doing fantastic. The Anubias sent out a flower, the Val's are sending off countless runners and the Java moss is uncontrollable. This also may be a plant that I get rid of if I an not find out what's wrong.
I'm using premium fertilizer by tropica and light is a finnex 24/7.