[APD] Deficiency is CaCl2-toxicity? Might be..

["Mariano F. Bonfante" <mariano_bonfante at hotmail_com>]

Daniel:


I have tried aragonite, but the problem is that it moves Kh. So maintaining 
PH with a controller close to the limit and then vary the Kh could be 
dangerous.

Another alternative that could be explored is Ca(NO3)2. I have no commnets 
from this yet.

Regarding CaCl2, with a small dose microsorium will notice it. At larger 
doses, everything will get affected like your photo.

I would say thet my tap water is quit soft, comming from the Parana river 
basing.


Best regards,


Mariano

Buenos Aires, Argentina

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