refractometer

All are brand new open items 1. Ozotech posiedon ozone generator - SOLD 2. Kessil WiFi dongle - 79 3. Philipps coral gen 2 controller - 59 4. Pro 1 saltwater refractometer - 25

Hi everyone, So I purchased a refractometer and have been trusting it so far. I calibrated it with the RO water I use prior to mixing with salt, had it reach zero on the dot, and then have been making/adding water that reads as 1.026. This all seems correct to me, but I have seen a few...

AI Prime 16HD Sol LED Light w/ AI 12" Arm $140 Tunze 3151 Osmolator 3 Nano ATO $95 *Brand New Kamoer X1 Pro T Dosing Pump $90 Jebao SLW-10 Sine Wave Wavemaker Power Head $38 ATC Refractometer + Calibration Fluid $22 Dry Rock (Ihave about 20lbs) $28 Pet Bank Auto Feeder $15 20 Gallon Glass Tank +...

Hello all! Got back into the hobby and Started a new tank yesterday . 20G AIO Waterbox cube . Used about 8lbs of liverock from a local fish store in Rhode Island . Dosed a 4 OZ bottle of Fritz turbostart 900 into the tank yesterday evening and this morning added 3 ML of Dr Tim’s ammonium...

Works well, just don’t need it. Asking $75 shipped

Used in great condition. Works as should. Comes with the carrying case.

Like new. Owned for less than a year. Original box manuals and all will be included. $100 local pick up 45833. Will ship buyer pays shipping.

For sale 2 brand new Premium Ecotech Hanging kit. Never used. $45 each 1 Milwaukee Refractometer MA871 $100 Free shipping lower 48.

Hi, guys... I have a few... well several issues..... 1. Salinity: - I have this Refractometer, that I bought around $140 off eBay. I tried various 35ppt solution I found in Amazon, only 1 worked (or so I thought). It's "AquaticExperts - AccuBrate". This is the only that once calibrate, it read...

My RODI water says that my refractometer is a little off. However, I usually calibrate with distilled water. Should I use distilled or RODI water to calibrate a handheld 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...