Kolla här vad Claus Christensen (Tropica VD:n) berättade om på ett växtakvariesymposium i USA:
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After we finished with the contest results, we were treated to another
presentation from Claus Christensen. This time, Claus took the
entire Tropica crew (50 people!) down to South America. After seeing
the crypts of asia, we figured were going to see some South American
soft water plants. Well, we did see lots of South American plants.
But the water was ANYTHING but soft. The area they went to was in
Brazil. I'll need to ask someone who was taking better notes the
exact name of the area, but the water was originating on top of a
plateau, where it then filters down thru calcium-carbonate rich rock,
and emerges in springs which feed into rivers and a huge swamp type
area. Instead of tea-tinted soft water, this was crystal-clear
water, with a KH of about 18 degres, and a GH at least that high.
Most of the substrate was PURE calcium carbonate. A bright white
bottom. The plant growth was unbelievable. The plants were all the
usual South-American plants. The ones that we are often told are
"soft water" plants. Claus made the point that those plants that are
typically considered "soft water" plants are simply those that do a
reasonable job of surviving and growing in very soft water. These
same plants, in rich hard water, grow MUCH better. There were
massive swords, huge fields of stargrass, a few species of Ambulia,
basically anything that could grow in South America was found there in
the very hard water. Claus showed a slide with some water sample
analysis numbers, and even though the plants were growing wonderfully
without any signs of deficiency, there was ZERO measurable iron in the
water. And since the substrate was calcium carbonate, it seems
unlikely that the plants are getting any iron from there.
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På något underligt sätt har jag alltid tänkt att om det står Hardness tolerance: Soft så ska man ha så mjukt vatten som möjligt. Det är ju med andra ord helt fel. Det betyder ju att växter klarar av att leva i mjukt vatten, inte att den föredrar det.
-"Tänkte inte på det".
<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>citat:<hr height=1 noshade id=quote>
After we finished with the contest results, we were treated to another
presentation from Claus Christensen. This time, Claus took the
entire Tropica crew (50 people!) down to South America. After seeing
the crypts of asia, we figured were going to see some South American
soft water plants. Well, we did see lots of South American plants.
But the water was ANYTHING but soft. The area they went to was in
Brazil. I'll need to ask someone who was taking better notes the
exact name of the area, but the water was originating on top of a
plateau, where it then filters down thru calcium-carbonate rich rock,
and emerges in springs which feed into rivers and a huge swamp type
area. Instead of tea-tinted soft water, this was crystal-clear
water, with a KH of about 18 degres, and a GH at least that high.
Most of the substrate was PURE calcium carbonate. A bright white
bottom. The plant growth was unbelievable. The plants were all the
usual South-American plants. The ones that we are often told are
"soft water" plants. Claus made the point that those plants that are
typically considered "soft water" plants are simply those that do a
reasonable job of surviving and growing in very soft water. These
same plants, in rich hard water, grow MUCH better. There were
massive swords, huge fields of stargrass, a few species of Ambulia,
basically anything that could grow in South America was found there in
the very hard water. Claus showed a slide with some water sample
analysis numbers, and even though the plants were growing wonderfully
without any signs of deficiency, there was ZERO measurable iron in the
water. And since the substrate was calcium carbonate, it seems
unlikely that the plants are getting any iron from there.
<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>
På något underligt sätt har jag alltid tänkt att om det står Hardness tolerance: Soft så ska man ha så mjukt vatten som möjligt. Det är ju med andra ord helt fel. Det betyder ju att växter klarar av att leva i mjukt vatten, inte att den föredrar det.
-"Tänkte inte på det".
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