refractometer

I have two ATC Refractometers with case and pipette available. $10 shipped.

Hanna Phosphate ULR 25+ reagent packets, calibration kit - $50 Hanna Nitrite ULR - $40 Nitrate HR - $40 Bulk Reef Supply LED Refractometer w/ open calibration solution (roughly half remaining) - $20

New to Reef2Reef, and hope this is allowed. I am having salinity issues after being in the hobby for about a year now. My refractometer’s (new and old) are reading wonky. And I have calibrated with 35ppt solution from BRS and AccuraSea, different readings from Both and NOT 35 ppt. I am...

Hello everybody, I have just started my first saltwater tank and am wondering on what is the best salinity tester. I want something that is accurate and easy to use. Preferably under $80. TIA

I’ve got 3 separate tools to measure salinity. A Red Sea refractometer that I keep having to calibrate, and 2 different swing arms that I’ve had forever. I recently went ahead and recalibrated the Red Sea with some solution I purchased on Amazon (continuum reagents at 1.026). Unfortunately, my...

I have a digital refractometer that has seen limited use. Pictures are attached. $60 + $5 shipping

Hi all For the past couple years I’ve only been using my good old refractometer and calibrating it with 35ppt solution to measure my salinity in tanks and when mixing water. It has always worked well for me and is my standard for mixing water. Well recently I purchased the Hanna marine...

*SOLD* Selling my Hannah Testers and Refractometer as a bundle for $150 total shipped. Phosphorous ULR and Nitrate LR still have full boxes of unexpired reagents. These have been barely used and purchased in March of 2023 along with the Refractometer which comes with calibration fluid. The...

Excellent condition, used for about a year for water change testing. $65 shipped.

Inline flow meter $100 Reef fanatic ph controller $75 Neptune ddr $80 Milwaukee digital refractometer $40 Will ship

Great condition with its original box and papers. Includes a hard case. The distilled water solution is empty but the original bottle is included.

Hey guys im at work right now so no pics but if people are interested ill take the time to post pics. Im in Alberta Canada, i will ship anywhere provided the buyer pays shipping. Ive got: ●lifegard pro Max 90watt uv sterilizer with new bulb and sleeve. $260 usd ●bashsea twisted protein skimmer...

So I just bought a Hanna salinity checker for my tank. A little reason why I bought the checker. I travel a lot for work and so a lot of the time I’m not home to look after the tank. My family do a good job of the basics and then I do the water changes when I’m home. Recently they needed to do a...

Hello everyone, I really tried to figure this out before making this thread. I also read a few similar threads from other members with similar problems. But decided to make my own thread in the end (hopefully this is in the correct area). I apologize in advance for the long read. Tank is a...

So I have been using the hanna digital salinity checker for my salinity readings for the past year or so and have consistently gotten a reading of 1.023 with an occasional jump to 1.024. I just bought a refractometer and tried it today and got a reading of 1.026. This is a day after getting a...

Hello all, Weird question. So basically, I’ve always used a bottle of Fritz Refractometer fluid to calibrate my refractometer. I had a bottle of BRS fluid, and also just got another brand new one. Well today I tried all of them, to find there was a difference of 5ppt between the Fritz and a BRS...

So I just purchased the new Hanna Marine Monitor that has a PH probe and a Salinity/Temp probe. The unit continuously displays the above and uses temp to accurately calculate it’s readings. I hooked the unit up and followed the instructions on how to use the included 7.1 ph solution satchets and...

All items were used for less than a year, available for pick up in Arlington: Quantum Nyos 120: 250 Tunze 6055: 100 AI Nero 5: 125 Milwaukee refractometer and case: 100 Eheim Jager 150 watt heaters (1 new and 1 unused): make offer TDS meter, Ph tester, Phosphorous tester (all digital): make...

I've been calibrating my refractometer with RODI for the past 2 years. I now know that it's best to calibrate with calibration solution. I want to switch to calibrating with the solution with my next water change, but the problem that I ran into is when I calibrate using the solution my tanks...

Brs refractometer with LED light. Comes with calibration solution. Ships with paypal.

Refractometer with LED light and calibration solution $25. Ships with paypal.

Hanna Checkers for Sale. Calcium - $20 Alkalinity - $20 Phosphorus ULR - $25 Nitrate HR - $30 Nitrate HR HI728-25 reagents x2 -$10 Each Nitrate LR - $25 Refractometer RHS-10ATC - $15 GHL doser 2.0 Master 3Pump 1 white body (pictured) 1 Black body - $225 each Shipped Box, power supply, USB...

Does copper artificially elevate salinity readings on refractometers? I am at 0.25 copper today, and did a water change before starting to ramp up. The bucket of water I mixed said 35ppt, and I just went to test the salinity of the QT tank and it was at 43. I'm adding fresh RODI water to bring...

I was wondering if there was any Salinity testing equipment that actively reads Salinity in real-time, I use the Hanna Salinity Checker which I really enjoy but sometimes I get the feeling that it's not as accurate as a Refractometer.

I already own a delicate, glass hydrometer from Dupla. Plan on buying a digital refractometer, the Hanna one specifically. Should I own a handheld refractometer to double check the digital refractometer? The Vee Gee STX-3 is a bit of an investment, but I can't doublecheck with the hydrometer...