The washing machine-sized Bubble King DeLuxe 500 External from Aquarium Specialty is one beast of a protein skimmer. The BKD500ext is capable of drawing over 5000 liter per hour of air while sipping a mere 78 watts: that’s two and a half times the maximum air intake of the Alpha Kone 250 while using only twice the amount of power. At $5500 before shipping, we assume this machine was a special order. Protein skimmer cleaning slave-child ships separately.
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