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leading to greater beneficial bacteria activity
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5" MPT/FPT 1"-1
The 5" airstone pairs best with smaller systems
these pumps still deliver big performance
YSI Economy Oxygen Meter with Optional Probes Item:Metric Meter with Probe, 30' Cable leading to greater beneficial bacteriaSPECIAL ORDER ONLY The D200 Economy Oxygen Meter from YSI Meters is designed for quick, accurate oxygen and temperature readings! This handheld, easy to use meter features a watertight IP67 housing, so there's no need to worry about the meter getting wet. Automatic temperature compensation Manual salinity compensation Low battery indicator with 500 hour battery life Screw on cap membranes with low stirring, fast response probe
