I have a Cryptocoryne walkerii. It's been doing great, and just today I noticed that three of the leaves were standing straight up, maybe like a val. The other four leaves, plus the very new leaf, are all in the normal position. The leaves that were standing straight up then melted very badly and laid on the gravel. I used my long tweezers to remove them, and the stems were already detached from the plant. What happened?
Lighting is a 15-watt Penn Plax flourescent -- it hangs over two 5.5 gallon tanks. I've had this crypt since June and it's been growing very well. I fertilize twice a week, about 1/2 cc
, with Seachem Flourish, and 3-4 times a week with Flourish Excel. I also use the Flourish root tabs.
The only thing I can think of is that the roots are very big now, and I gravel-vac them up by accident. I didn't realize how much they had spread through the tank. Could I need to change the light bulb already? I got it in June also. It's on for about 10 hours a day.