I wanted to see if I could see less vibrance from the plants as the week progressed without fertilizing the aquarium with PMDD. But nope. Even after a dose (0,5 ppm PO4, 5 ppm NO3 and 0.1 ppm Fe) on thursday nothing happens.
It would be cool if one could use the IR-reflectance of the plants to see when to fertilize.
I might test a black film where the IR-filter should sit to only let through IR...
http://www.defblog.se
Det kommer med ett timelapse-program till QuickCam:en (och att ta bort ir-filtret är ganska lätt om det var det du menade).
defdac 4 years ago
fan va coolt , hur har du filma det???
ivanelvis123 4 years ago