07-06-2011, 08:55 AM
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I would not think that missing fertilization for one week would have made any noticeable difference within a week following. At least this has been my experience. It does also depend on what nutrients are otherwise available. Was the water change schedule affected, for instance?
If the light period was unaffected, here again I would not have expected anything within a week.
From the above, you will see I am considering any changes to the norm. Temperature, water parameters, fish feeding, fertilization, light intensity and duration--these are all things that can affect plant growth if changes occur. The degree depends upon the whole system.
With respect to the Water Sprite, as with all floating plants, you must regularly thin them out or trim them to maintain whatever amount of shading you need in the tank. I find the easiest way with Water Sprite is to pull of some of the daughter plants and remove the large parent plant, then cull the daughter plants similarly. The fast growth of this plant is a benefit as it is removing ammonia and other nutrients from the water column very effectively. This is a great floating plant.