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Can't make Green Water?

Started by Guest_Yeahson421_* , Apr 17 2013 09:37 PM

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8 replies to this topic

#1 Guest_Yeahson421_*

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Posted 17 April 2013 - 09:37 PM

I've tried multiple times to make green water, and it always just turns brown. What should I do?

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#2 Guest_Skipjack_*

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Posted 18 April 2013 - 06:58 AM

I had a hard time making it as well, until I started using rain water. Our tap water is Ph 8.3. I suspect that had something to do with it.

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#3 Guest_chibikaie_*

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Posted 18 April 2013 - 08:03 AM

Oh, thank you! I will try that as well. And perhaps I'll pick up some nice algal spores from the nearby pond that way.

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#4 Guest_Usil_*

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Posted 18 April 2013 - 12:10 PM

I saw it made in the university lab and the 5-gallon bottles were on a motion table under light.

Edited by Usil, 18 April 2013 - 12:11 PM.

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#5 Guest_Yeahson421_*

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Posted 18 April 2013 - 04:04 PM

Okay, I'll try using rain water, as that is plentiful right now! Thank you!

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#6 Guest_EricaWieser_*

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Posted 18 April 2013 - 05:55 PM

I like greenwater but I dislike that it takes up tank space. Given the same space, I would much rather have an aquarium than a greenwater culture, you know? With that said, yes, I have grown a fair bit of greenwater in the past.

Pictures:
http://gallery.nanfa...jpg.html
http://gallery.nanfa...resize.jpg.html
http://gallery.nanfa...r/tank.jpg.html
http://gallery.nanfa...resize.jpg.html
http://gallery.nanfa...unfish.jpg.html

The trick is to leave the lights on a long time and have a lot of dissolved nitrogen and phosphorus.

Edited by EricaWieser, 18 April 2013 - 05:57 PM.

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#7 Guest_Subrosa_*

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Posted 18 April 2013 - 06:43 PM

Photoperiod is the key. Put used aquarium water under 24 hour lighting and you will get green water.

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#8 Guest_Auban_*

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Posted 21 April 2013 - 05:17 PM

the live phytoplankton foods available for marine aquariums work for seeding a green water culture. so, if your doing everything right and still end up with the wrong kind of algae, they may work. its how i start all my green water cultures.

on a side note, blue LEDs at around 450nm are VERY good at growing green water. when i tested some on a tank, i ended up with a visibility of less than two millimeters.

they are pretty efficient too.

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#9 Guest_gerald_*

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Posted 22 April 2013 - 12:04 PM

NOTE: Not ALL "green water" is good zooplankton food. I have several times had green water blooms occur in indoor tanks (usually by accident) that would NOT support Moina or Daphnia -- they died out over a few days to a week, and their guts never looked full despite the algae density. I did not ID the algae, but apparently it was something distasteful or non-nutritious to cladocerans. I've generally had better luck with outdoor-grown green water for use as zooplankton feed.