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For persistent pond problems
These issues are primarily a secondary infection resulting from external damage caused by parasites
Start applying when water temperature is below 60°F
shrimp meal
YSI Economy Oxygen Meter with Optional Probes Item:Metric Meter with Probe, 12' Cable For persistent pond problemsSPECIAL 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
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