09-08-2009, 03:20 PM
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Originally Posted by WisFish
The roots of the crypts melted as well. I could see the runners along the glass melt away. Origianlly I thought it could have been the ferts that were cauisng the melt down. But all the crypts in the "shade" survived. Over time, as I trim plants and the crypts become exposed, they are slowly melting away. Too bad. I really liked the dark grren and red contrasts.
I went back to my info from Ms. Randall, and I note that she mentions stability as the significant need for crypts. Increased lighting and CO2 usually cause the crypts to melt, but they will recover (she says) in several months; the longest was two years before new leaves came from the rootstock. She makes no mention of the rootstock actually melting. She also notes that a heavy load of organics will cause the meltdown; with excellent water quality, the plants may (note, may) weather a sudden change in lighting with only a few lost leaves, but in poorer (organic-laden) water the entire stand will melt. Consistent water qualtiy is essential.
Your experience certainly leads me to think it was the light change (the shade area plants survived). Did you dig up the "roots" or have you left any; if it takes several months [I know that after my first ph disaster when the tap water went from below 6 to 7 and they melted, it was months before new leaves appeared, and only on some. I still have the last of those plants, and that occurred 9 years ago.