I don't know what caused this but my (very bushy and healthy) Anarchis and my val and an unidentified plant I've been growing all melted... They grew fine for 3 weeks until they died one weekend while I was gone... I do bi-weekly flourish comprehensive (not to be confused with excel) dosing and continuous well-dispersed CO2 injection... It is also a planted tank. There is plenty of light. The true monkey wrench in this mess is that ALL other plants int the tank are flourishing (not growing ok I mean flourishing I had a parrot feather grow from 3 inches to 10 inches and 20extra leaves in a week...).... Anyways Any thoughts? Thanks in advance.