tester

Brand new/Unopened Mastertronic for sale. Haven't set tank up yet and have decided that I could use the money on other things. Located in Louisiana, but am willing to ship. $1100 OBO.

I am selling my WaterLink tester I have had for less than a year it comes with around 20 disks and a carrying case along with the accessories with little to no signs of being used. Retail cost of over $1,300. $900 shipped. It has the ability to test 8 parameters at once and is extremely easy to...

*Shipping included in price* Thank you for looking Salinity Tester- $50 needs calibration Alkalinity Checker- $40 Plenty of reagent left Phosphate Checker ULR- $40 new box of reagent

$900 o.b.o Comes with 20 testing disks….around $4 a disk (free) Shipping paid by buyer Works good, no issues This is the same tester the LFS uses and charges you for the results Venmo accepted This brand new is over $1000 Only a few months old This is only for saltwater testing

Both are sold!! I've got a couple Neptune Tridents we're no longer using if anyone's interested. Asking $325 a piece for them.

GHL PROFILUX mini Wi-Fi, used for 6 months then upgraded to hydros. Everything is in working order. $150

Opened, used once or twice, basically new. $35 shipped from upstate NY.

Hello, I have for sale a trident comes with reagents. Asking $430 shipped through FedEx express.

Selling various test kits and Hanna testers. Refractometer with LED light and calibration solution $25 Copper high range Hanna tester with 50+ reagents $50 Alkalinity checker HI772 Hanna tester with extra reagent $50 PH tester HI780 Hanna tester $40 Calcium tester HI758 Hanna tester with extra...

Hi, I'm still a beginner in this hobby and I have a 20 gallon AIO tank with 2 clowns, a turbo snail and a frag of GSP. For the whole time (around 2 months) I've had this tank, I just did weekly water changes and thats all. I only have a portable refractometer, Salifert Ammonia tester and a...

One never used Hanna Phosphate Checker (HI713) and 50 tests. $25 plus whatever shipping method you prefer unless Boston area handoff. One barely used Hanna ULR Phosphate Checker (HI774) and 50 tests. $40 plus whatever shipping method you prefer unless Boston area handoff. Payment by Venmo...

How come I test calcium using API and get 390 and then when i tested calcium with Hanna Tester it says 550? I’ve read the manual a million times and watched videos on how to use the Hannah tester so I’m confident I’m using it correctly. Any help/ideas?

I have a spare Hannah Calcium tester I’m looking to trade for a Hannah Nitrate tester. If you have one to trade or sell; hit me up. Thanks.

IT's finally over. 6 months of hard work is coming to the End Game. (Working Alk Monitor) A crazy idea I came up with, actually works. All started because I couldn't get a Apex Trident (none available), nor or was I will to shell out the money (and throw out two perfectly working two Apex...

Question: If you own a Trident, do you still perform manual tests with the test kits that you used prior to acquiring a Trident, such as Salifert, Hanna, Red Sea, et al. Why do you, or do you not, perform manual tests? I tried searching for threads that involve discussions about whether Trident...

hey guys, so im planning of setting up a QT tank and trying the Hypo salinity method of killing ich supposedly its the easiest yet the safest way without using copper.... well i have a refactometer that i purchased from petco a year ago and ive been using it to measure my salinity in my current...