hanna

I've heard about the problem of Hanna's Magnesium colorimeter reading high and recently learned that you can fill out a form on the Hanna website to get them to send out a new Reagent to correct the issue. But has anyone not had to do this and is getting similar results to other tests they do? I...

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...

Got my checkers on point!!

Hanna Phosphate Low Range Checker HI713 model w/case, new box of 25 reagent packs, 2 cuvettes & instructions. $45 shipped

Trying to clear out some equipment I don’t have use for. No REASONABLE offer will be refused. Will consider trades for a G5/G6 XR15 Blue with a mount. Pm me if interested. Willing to ship. Brand new GHL ProfiLux 4e Starter Set - White $600 Brand new Hanna Phosphate ULR + Extra Reagent SOLD...

Brand new never used Hanna ULR Phosphate checker with a brand new box of reagent. Asking 65 shipped

Brand new never used Hanna ULR Phosphate checker with a brand new box of reagent. Asking 65 shipped

There are several threads accumulating on the forums of people having issues w/new marine magnesium checker HI783. There are also some similar reports on the AskBRS facebook page--results several hundred points higher. I wanted to start a thread here in Hanna Instruments sub-forum to give Hanna...

Hello , I need help to determine if my levels are good. I’m keeping mostly LPS and softies. Thank you

I picked up one of the new Hanna HI783 Magnesium checkers when they dropped last week, and after one or two mulligans I got it working pretty well. A little more complex than the basic hanna tests (requires 2 reagents) but nothing too bad, especially vs the other titration mag methods. The...

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.

Back when I was testing more regularly I bought a Taylor SpeedStir portable magnetic stirrer for use with my Red Sea titration tests. Even with a smaller 15mm stir bar I had to make sure the cuvette was absolutely centered or the bar would just bounce off of the sides and get stuck. It was a bit...

Ok, so I know this is a highly debated topic, and ultimately most people recommend both ultra low range checkers, but my question is for a newly set up tank where phosphate could easily be above the maximum range of the ultra low range checkers (0.9ppm i believe). Would it be better to get the...

This thread is for the general discussion of the classified ad 3D Printed Test Kit Organizers (Hanna, Salifert, Red Sea). For more information about this item, please click the link or ask a question in this thread. Please add to the discussion here.

Maybe I was the only one who was left in the dark, but some German sites show: HI783 Hanna Marine Magnesium Checker HI784 Hanna Marine Ammonia Checker I'm so glad I won't have to do any more titration tests. Anyone else is very keen to try out the new magnesium checker? The Magnesium one is...

Hi. I wonder if there is a way to determine the clarity of Hanna Checker Cuvettes, so that one can determine if it is time to change them. I imagine that the checker itself should be able to give you a value for the cuvette with RO water that you can use to determine its "clarity". No...

Just getting back in so not sure if to spend on the Hanna checkers for calc alk mag and phos or purchase something else like red sea or api or any other out there now

Looking to buy specific Hanna checkers. Looking for a high nitrate hanna tester as well as a low phosphate. Located in Richmond area for shipping costs

I created a 3D printed test tube rack and wanted to share it with the community. I designed it to hold my test kit hardware to make it easier to collect the samples, test the water, carry the test tubes and cuvettes to the sink, hang it on the sink and keep everything safe, wash the hardware...

35 Hanna checker calcium used one or two times and stored and kept cleaned (ro water in the vials at all times) 5$ for shipping located in NH

This is the refresh of my original 3D Printed Test Kit Organizer Tray thread. The first post showcased now-old designs and one had to dig through the thread to find the new stuff, so a new thread was made to clean things up a bit as the old cannot be edited (Old thread will be deleted/closed by...

So I just realize now that I’m down to a couple and needed to reorder I’ve been using the wrong solution with my Phosphorous ULT tester. I’ve been using the regent for the Phosphate ULR. Any ideas how far off my readings would be by making this stupid mistake?

I am not sure if this is a stupid question or not but ive have noticed my tank has crazy phosphate spikes after every change. maybe stirring the sand up too much or something? The new water always tests 0 phosphate (i am using hanna) but after the water change it can go up to 0.8-1 which...

Diluted with 5 mL RO/DI so it's giving me 148.8 mg/L! Not diluted but it's in NO3-N which converts to 99.6 mg/L nitrate! I did a ~95% water change on 10/30 so this is pretty surprising. And my 2nd largest fish is in fish jail for being aggressive while my 3rd largest is in the FICU (fish...

Hi Guys, I understand that hobby grade test kits are used more for reference and stability. I also understand that number chasing isn't always the best to do with our reef tanks. But I would like to share a story (photos included) and get your input. For years my hanna alk checker has been...