How about...instead of having the rocks arranged along the lower half of your tank, creating some height with one of the bigger rocks? Otherwise I was going to suggest busting up one of the rocks, as Scavenger already did!
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~Drew
10G Nano * 10G Sump * Deltec MCE 600 Skimmer * JBL Viper 150w MH * Zeovit * Vortech MP40W
Millions long for immortality who do not know what to do with themselves on a rainy Sunday afternoon. ~S. Ertz
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