dee329 寫:
成日都溶葉,都唔知點解
但係又生得好快
通常係有一個窿係塊葉度,之後慢慢擴大就成塊溶
http://en.wikipedia.org/wiki/Cryptocoryne
Crypt melt
A phenomenon often encountered when planting new crypts in an aquarium is commonly called Crypt melt, whereby the plant looses all its [leaves]]. There seem to be two possible causes connected with this:
Rapid environmental changes is thought to trigger this, as these plants don't seem to adapt well to transplantion, and may need 30 days or so to become established and for the leaves to regrow. Experienced growers report that it is better to plant crypts in aquariums that have been established for at least three months.
In the wild most can grow as either fully submerged underwater but in oriental nurseries are often grown emerse and this condition may then be triggered by a change from emerse to submerse conditions.
There is lately a trend for such nurseries to send crypts as just a rootstock (ie. without the leaves to reduce postage costs and because the leaves will be lost anyway once planted in an aquarium.
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