[Robotguy]

I knew frogbit (oops, dwarf water lettuce) grew fast, but when I started growing some in a container on my desk at work I started realizing just how fast. I had to thin the growth after the first week, so I took a pic on Friday afternoon afterwards:

And then this one on the following Monday morning (the light is a spiral CF on a timer from 8 to 5, with a bit of hydroponics fertilizer in the water):

This prompted me to set up a time lapse with my cruddy webcam, 1 image per hour (8,9,10,11,12,1,2,3,4,5):

I think I'll try with a better camera after I thin it out again.

 

[guppygolucky]

that's water lettuce or dwarf water lettuce.

 

[Regenesis]

Yes, that's water lettuce, not duckweed

 

[Robotguy]

that's water lettuce or dwarf water lettuce.

So it is, thanks. It was sold to me as Frogbit, and I never thoughht to question it. I'll change the thread title...

 

[jasonpatterson]

How long a movie can you make? It would be pretty cool to see a 1 week long video as it spreads.

 

[Robotguy]

How long a movie can you make? It would be pretty cool to see a 1 week long video as it spreads.

I was thinking the same. I have been trying to hack the firmware on my camera so I can have it take a picture every few minutes, but all my P&S cameras are too old and my wife won't let me hack the DSLR (go figure...). I can set up the webcam that I used in the animation above, but the quality will be pretty poor.

 

[treetom]

Really cool animation. Thanks for making it.

 

[Robotguy]

OK, I thinned it out again during lunch today by removing all runners from the largest "mother" plants and set up the webcam to take a pic every 10 minutes starting with this one:

I will leave the small tube fluorescent on 24/7 so there is at least an image during the night.I'll let the 25W CF run on the timer daily from 8 to 5. I added a small splash of hydroponics fertilizer again.

BTW here's a weeks worth of "harvest":

 

[Robotguy]

So far:
http://youtu.be/c1cuoBKS5Eo

I was taking a pic every 10 minutes, but that actually was too slow to see the growth well, so I only used every other image.

 

[Jeffww]

Anyone else find the moving marimo unsettling?

 

[planted goldfish]

Anyone else find the moving marimo unsettling?

what?

 

[Jeffww]

in the youtube video the marimo ball floats up and down and rolls around.

 

[Robotguy]

It's Aliiiiive!

Well, it is....