08-29-2009, 06:49 PM
I think you're being a bit myopic in your basis for opinion.
Down there in your growing conditions, almost anything will work fine, as the humidity doesn't compete as much with the wicking action. In places where the evaporation rate is much higher, there are definite differences in how the pellets perform - some wick faster, some wick slower. Some absorb more but don't release it well, while others do so with great efficiency - again, irrelevant in Fort Myers, but not everywhere.
And no, all of the pellets don't float.
Using science and logic
to advance orchid growing