P stellata grows very weedy otherwise. If it melts, you moved it too much or poor CO2 etc.
Thanks for the comment. I up'd my CO2 yesterday and will up it this weekend some more when I am around to make sure it is not to much for the fish. I am injecting thru an Atomic inline diffuser and dissolved thru a reactor. The last 2 times I have trimmed, I have topped them and replanted because the bottoms have looked really bad like they do in the pics. They always grow like mad and the new growth always looks good.
I am also dosing 1 tsp of Mono-Potassium Phosphate, 1/2 tsp of Potassium Nitrate & 1/2 tsp of Potassium Sulfate on Sunday, Tuesday & Thursday. I up'd the dosage by a 1/2 tsp on all 3 yesterday. I also dose 1/2 tsp Magnesium, 1/2 tsp Plantex & 1/8 tsp of iron on Monday, Wed. & Friday.