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Boron, Algae, A. Gigantea
I've been gone for awhile. Funny how PhD comprehensive examinations and
a new son can get in the way of hobbies. Well, I won't let work
interfere again, as for the boy. . . .
1. I recently mailordered a bucket o' Plantex CSM. I notice the
analysis differs from what I had seen before (Mg 1.5%, Cu .1%, Fe 7%, Mn
2%, Mo .06%, Zn .4%). I don't think any of the differences is critical.
However, since I start with RO water for my aquaria, I suppose the
absence of Boron in the mix might be a problem. Checking the archives I
see a consensus that Boric Acid would be a good remedy. Where do you
get the stuff? And how much should I include? I'm guessing that about
a gram per half liter of PMDD would be right--good guess?
2. Name this alga: It sort of looks like a light dusting of toner or a
mist of black spraypaint on my slow-growing leaves (e.g. anubias
barteri). It's different, I gather, from a diatom alga in that it is
not easily removed. Any ideas?
3. I bought some anubias gigantea (or so it was labelled) while on
vacation months and months ago. Despite my exams I have not quite
succeeded in killing it, but it is withering away. I can't find any
info on this plant (must be in Baensch 3). Does this plant prefer
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