hanna checker

  1. ZoWhat

    Hanna Checkers - it's all about the glass

    180g DT with 240 total water. I tested Alk this morning with my Hanna. it came in at 14.5 !!!!! yikes! I tested TWICE I started with a 25g water change today to lower the # in panic mode "Wait a minute!!" I said, "my high # doesn't make sense....I havent dosed any Carbonate since my last...
  2. B

    New York Hanna HI702 High Range Copper Checker

    I have Hanna HI702 High Range Copper Checker used it 5 times . I will include 26 packets of reagent $ 40 SHIPPED
  3. Austin Lee

    High calc with fresh Reef Crystals?

    Has anyone else had an issue with IO Reef Crystals having super high calc? I had a calc reading of 518 in my tank over the weekend and a fellow reefer on here suggested I mix some fresh SW and test the params, so I did and at 1.026 ppm, Reef Crystals is measuring calc at 522. Anyone else had...
  4. fmf_21

    Mississippi HANNA CHECKERS , SALIFERT MAG. REFRACTOMETER SOLD !!!

    $160 SHIPPED
  5. MarineDepot

    How to Control Phosphate Using Hanna Phosphate Checkers and GFO Media

    How to Control Phosphate Using Hanna Phosphate Checkers and GFO Media PLUS: New gear from GHL, Eheim, Coral Essentials, and Brightwell Aquatics!
  6. Boltline

    California Fire Sale Part II- Equipment- LOTS OF STUFF(Costa Mesa)

    Not gonna lie, I'm a little depressed posting all this right now. Here's the rest of my equipment. Please text me if you are interested 909-772-5802. Will ship as long as you pay for shipping and packaging. 50g SCA Tank & Stand w/ lights, sump, plumbing $300 Apex Classic Gold w/ PM2 $300...
  7. LilElroyJetson

    How Many Test Kits Do You Have?

    I know...I have a problem. I was organizing my supply cabinet and realized I have clearly accumulated more test kits than should ever be necessary. BUT it has been helpful having everything I need at arms reach, and the ease of use of these kits has caused me to test consistently, which I’m...
  8. JDnKY

    Phosphate testing

    I have a 180 gal mixed reef about a year old. I’ve been using GFO kind of blindly off and on for the last several months, I don’t use the GFO unless progress seems to slow down and it has always seemed to help my corals grow better again but I’ve read several horror stories about overuse of GFO...
  9. MarineDepot

    Hanna Checkers and ESV B-Ionic Giveaway - 24 HOURS ONLY

    Hanna Checkers and ESV B-Ionic Giveaway - 24 HOURS ONLY We are having a giveaway on Facebook today 3/7/19 and will choose 1 winner tomorrow 3/8/19. There is no purchase necessary to enter or win. You must be a U.S. resident age 18 or older to participate. ENTER NOW >
  10. MarineDepot

    How to Use Hanna Checkers to Dial In Your 2-Part Dosing Regimen

    How to Use Hanna Checkers to Dial In Your 2-Part Dosing Regimen VIDEO: A beginner’s guide to maintaining calcium & alkalinity
  11. SilverCityReef

    Massachusetts WTB Hanna Calcium Checker

    Looking for a Hanna Checker for Calcium. If anyone has one and can ship asap, please let me know what your asking price is. If it doesn't have any reagent left, I'm not interested though. Also, if anyone has a 3 or 4 chamber reservoir for dosing that's on the cheaper side, let me know. I know...
  12. duromega

    New York PHOSPHATE LOW RANGE COLORIMETER HI713 HANNA CHECKER - FRESH & MARINE WATER

    Used in inmacculate condition my Hanna PO4 Checker Perfect working order. $35 Free Shipping. Some of my feedback. https://www.reef2reef.com/threads/purchasing-from-duromega.421078/
  13. ckalupa

    Hanna Checkers - anyone else notice?

    Been using these checkers for several months - Alk, phos, copper, nitrite (doing test with others on another thread), calcium. Several things I have noticed - curious if others have or if this indicates something? 1- This one will vary - warm up time?: Sometimes the initial reading check step...
  14. Streetdoc77

    Hanna checktemp mod

    I have grown tired of not having a probe holder for the checktemp .... there is no storage on the device for the probe or the 6 ft cord . I took the spare red cap from a brs super glue bottle and carefully cut out the center sanded it a bit and rubbed with alcohol and lightly sand the check...
  15. AquariumSpecialty

    Check out the new Hanna Salinity Tester at Aquarium Specialty

    We are taking pre-orders for the new tester. It features graphite sensors for in tank use and better reliability. We expect orders to begin shipping next week. https://www.aquariumspecialty.com/hanna-instruments-hi98319-marine-salinity-tester.html
  16. BoSalman

    Hanna Instr. in GCC?

    Hello, I've looked online for a retailer here in Kuwait and tried to email/call (Tectron) without any luck. I'm wondering if i do have any option for international shipping/ordering to Kuwait City (44006)? I did purchase Alk checker from a seller on amazon to hopefully get it soon, but any...
  17. grassy_noel

    Illinois Hanna Low Range Phosphate Checker HI713

    I'm selling my Hanna Low Range Phosphate Checker (HI713). It is in perfect working condition, I just don't have high enough phosphates to register on this checker so I am switching to the ULR. I will include about 10 packets of reagent, purchased about 3 months ago, and the AAA battery. I am...
  18. LEOreefer

    New York Hanna ultra low range phosphate checker

    For sale is a Hanna ultra low range phosphate checker. It’s in good working order and comes with 2 glass viles with caps , the Hanna checker , and half of box of reagent.
  19. BlueWorldJeff

    Alk Calibration Fluid

    Does Hanna offer calibration fluid, so I know my Alk checker is reading accurately. And if so, and the reading is off, how to calibrate? I'm using the HI 755 ppm Alk checker with the HI 755S reagent
  20. HotRocks

    *COPPERSAFE WARNING* along with Research on Hanna Instruments High Range Copper Checker

    Anyone who is using coppersafe needs to know the following: There are several of us here at R2R experiencing issues with the concentration of coppersafe lately, Even seasoned veterans @Big G, @4FordFamily to list a couple that I know of. Myself included (without the veteran part). Have also...
  21. WhiskeyCoffee

    Salifert testing higher dKh than Hanna

    So the other day I got some erroneous readings on my Salifert alkalinity test. First one was 9.6 dKh then two days later it was 12. I also tested a fresh batch of Reef Crystals and it came out 12 dKh. I panicked but everything looked healthy in my tank. Maybe I just screwed up the tests. I asked...
  22. filbie70

    Shelf life on API test kits?

    Does anyone know the shelf life on test kits? I did a test yesterday with an API and it turned blue as soon as I added the second reagent. I measured about a 2.0. I checked again tonight and the same result. I pulled out my Hanna checker and received a 0.00. I’d love to go with the Hanna...
  23. Crimsonvice

    Crimson's garage sale

    Gyre xf150 used for almost two years. Works like a champ. $130 (in vinegar bath now) Hanna Checker dkh NIB - $40 Hanna Checker Cal NIB - $40 Hanna Checker Pocket pH NIB - $30 OR all 3 for $100 Aquaforest Build and Amino Mix NIB $10 each Bubble Magus Curve 5 - $80 ***PLEASE READ*** Skimmer...
  24. jordimex

    HANNAH-API-RED SEA weird results!!

    So today a couple friends came to my house and are really knowledgeable about both marine and fresh water tanks, they are from argentina and brazil they came to the house for a beer and to talk about corals and fish, one of the guys told me that he wanted to test my water so i handed him all my...
  25. Hanna Instruments

    Learn About the Hanna Instruments Seawater Refractometer HI96822

    The HI96822 is a rugged, portable digital refractometer designed for the measurement of salinity of natural or artificial seawater. The HI96822 displays results in three popular measurement units: Practical Salinity Units (PSU), salinity in parts per thousands (ppt) and specific gravity (S.G...
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