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Re: deficiency? What's missing?

> Subject: deficiency? What's missing?
> I'm having trouble with some deficiency - trying
> to track it down. The only plants that seem to
> be affected are ludwigia arcuata and ammania gracilis.
> Heres a picture of the ludwigia..
> http://www.aquaticscape.com/offsite/ludwigia.jpg
> In Ammania graclilis, on SOME stems the growing tip is crumpled.
> I'm thinking calcium - but I do have some crushed coral in my filter.
> Any ideas?

CO2 too low or NO3. Double check these.
Ca deficiency is rare to infrequent but does occur.

Tom Barr