Optical-sensor ATO reliability at a budget-friendly price.

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Read our full review: AutoAqua Smart ATO Review: Optical Sensor ATO Without the Tunze Price

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IceCap Gyre Pump Deal

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Cobalt MJ Powerhead Deal

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Reef tools mentioned in this article

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Reef Tank Match Quiz

Find the right reef archetype for your space and budget.

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Reef Equipment Planner

Generate a complete equipment shortlist for your build.

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Water Parameter Tracker

Log every reading. Catch problems before livestock notice.

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