As an Amazon Associate, we earn from qualifying purchases. 7.00 pH Calibration Fluid - Bulk Reef Supply Neptune Systems . 207519 Gallery Attributes Brand name, Manufacturer name, ManufacturerNeptune Systems Extra Product Name7.00 pH Calibration Fluid - Bulk Reef Supply extendedQty, qtyInStock0 keywordssaltwater aquarium supplies, reef aquarium supplies, marine fish tank, live rock, GFO, protein skimmers, two part dosing, aquarium carbon, fish food, RO/DI Systems, ecotech marine, aquaillumination, neptune systems, kessil, innovative marine moq, multiple, tierMinQty11 MPN, SKU207519 qtySourceupdateFromUrlEntry snippetKeep your pH probe calibrated! Neptune Systems single-use pH calibration packets make calibrating your pH probe simple and fast. Just tear open the top, and a stick your probe into the solution when performing the calibration procedure. Over the course of a couple months, it is common for pH probes to not read exactly correct and that can be fixed by calibrating your probe. Almost all monitoring devices will allow you to calibrate your pH probe, and a majority of them will let you calibrate your probe to a high and a low point. For saltwater aquariums, it is best to use a calibration solution with a pH of 7.0 for the low point and 10.0 pH for the high. We recommend calibrating standard pH probes every 3 months or as needed, where double j tierPrice11.99 Distributor offers SellerSKUMOQIn stockMultiplePrices bulkreefsupply.com207519111 @ $1.99