02-07-2005, 11:31 AM
Join Date: Jan 2005
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| | Rotala macrandra / lighting change
Sorry for starting a new thread
I posted this same message on plantedtank.net, however no one has posted a reply. So I was was hoping someone in this furom could help me out.
For the last two years I have been growing my plants under a single 96W 10,000K/470nm custom sealife bulb and they have been doing great.
Last week I changed the bulbs to one 55W 6700K and one 55w 9325K. All my other plants are doing great, even better than under the 50/50 bulb (Ludwigia glandulosa, Heterathera zosterfolia, Hemiathus micranthemoides, Glossostigma, Rotala sp. green, anubias Nana, Anubias petite, Eusteralis, Tiger lotus, and Lileaopsis). However, my Rotala macrandra doesn't seem to like the light change.
The new leaves of my rotala turned a really dark pink over a three day period and the lower leaves turned green. It seems as though the growth has stopped also.
Could this be due to a sudden change of the light spectrum from a more blue to a more red spectrum?
Any information that you guys have is greatly appreciated.