seabass Posted February 25, 2015 Share Posted February 25, 2015 For a reef tank, get the HI-736 (Phosphorus ULR). Quote Link to comment
Tmease Posted November 3, 2020 Share Posted November 3, 2020 Years later, and so many comment on the device timer cutting off. How nice it would be if there were a way to view the last reading, for those of us multitasking and device shuts off after a PO4 test. using the HI774 ULR for my Phosphate checking and their ALK tester too. Great devices! May be a useful feature to consider adding... Quote Link to comment
seabass Posted November 3, 2020 Share Posted November 3, 2020 You don't want it sitting in the vial too long, as it could potentially stain the glass. That said, if you don't want to use another reagent packet, simply fill the other vial with tank water and use that as sample 1. And instead of pressing and holding the button (prior to inserting sample 2), just press the button briefly. This will allow you to take another reading immediately. to Nano-Reef.com. Quote Link to comment
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