phosphate ?

ccLansman

Guru Class Expert
Jan 22, 2008
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0
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Vista, Ca
In an article on aquatic world i found this as a definition for phosphorus deficiency. However i dont understand the line on ph range dependency? What does that have to do with P? Also my fast growers have burnt looking leaves but my P is over 10ppm, what else could cause this? Light is 2-3wpg, co2 is high, drop checker always green, all other ferts are in excess, i do weekly 50% changes. I have anubis that are flowering and no old leaves that look almost black.

Phosphorus (P)

* Symptoms: Small leaves that may take on a reddish-purple tint. Leaf tips can look burnt and older leaves become almost black. Reduced flowers or seed production.
* Sources: Compounds containing the words 'phosphate' or 'bone'. Also greensand.
* Notes: Very dependent on pH range.


also what is this:
Witches brooms sometimes form
Says its due to boron being low, i know my anubis have large roots shooting out with smaller roots jutting out in all directions from them.
 

Tom Barr

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Staff member
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Jan 23, 2005
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This info is for terrestrial plants.

Regards,
Tom Barr