Low water will usually result in pleated leaves in Oncidiums and other classes. However, low water by itself, will rarely result in brown leaf tips! Usually, brown leaf tips are a result of either too much fertilizer or more frequently, not flushing the substrate.
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Ross
http://orchids-ross.blogspot.com/
I don't do most Dendros or large, "floofy orchids". For me it's minis (like Angraecoides), Masdies, Paphs, and others that crept in somewhere along the line. See my orchid list for complete collection (usually not current.)
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