excited
excited
omg, I am soo excited that someone else has this problem. I have PD's that started purple and grew brownish like your pic. They grew really fast and I have been wanting to trade etc, but felt guilty they were not as purple anymore. I recentley moved and in doing so put them lower in the tank. the new growth is purple again. I have a 14 gallon nono with 10 k, actinic and hyper (lots of light for this tank, i put in an extra). They are 1 inch of sand and loving it!!
Good luck!!