HM Digital DM-2 Dual In-Line TDS Monitor: Aquarium Controllers & Monitors
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HM Digital DM-2 Dual In-Line TDS Monitor

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HM Digital DM-2 Dual In-Line TDS Monitor
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Please note: Return of electrical equipment to Drs. Foster & Smith for exchange or refund is limited to 60 days from the date of purchase. Beyond 60 days, please contact the manufacturer for repair or replacement as covered by the manufacturer's warranty.

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Drs Foster and Smith Articles

The Importance of Regular Testing
As a fish hobbyist, it is imperative that you have an understanding of the water parameters that affect fish health, as well as the importance of water testing. Water testing cues you to what's happening in the system at any given time.
Marine pH Factor
Often overlooked, pH may well be one of the most critical parameters in a healthy system. Maintaining the right pH range - 8.3-8.5 in marine systems - has a natural antiseptic effect, helping fish resist illness and coral calcify faster.
Choose the Best RO Unit for Your Needs
No equipment is more effective in helping create ideal water conditions as Reverse Osmosis (RO) units. This article will help you pick the perfect RO Unit for your aquarium system.
RO Units Selection Guide
Clean, pure water is a priority for all fish and plants. No equipment is more effective in helping create ideal water conditions as Reverse Osmosis units. Use the following chart to help you choose the best RO Unit for your aquarium system.
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