testing

I made a large water change today, and thought'd it be "fun" to compare results between the new Hanna Nitrate High Range 782, and the old Low Range 781 using the dilution step. 781 Low Range diluted 782 High Range Percentual Difference Before Water Change 24,9 33 27,9% After Water Change...

Selling my Hanna LR Nitrate Checker. Its in great shape. There are still plenty of reagents for last for a bit. $30 + Shipping

i’ve been in the hobby for a while but have never touched a calcium reactor do i test more regularly for my calcium and alk or not?

At Marine Depot, we love to test our systems with Hanna Instruments Checkers. Within this video we provide a quick and easy step-by-step guide on how to use the Hanna Phosphate Checker. Shop our Hanna Instruments offerings HERE and don't hesitate to reach out to our customer care team with any...

The long awaited High Range Nitrate Checker from Hanna Instruments is here and available for pre-order. With a measurable range of 0- 75.0 ppm it has never been easier to get an accurate digital read out for the Nitrate levels in your aquarium. If you have any questions about this new checker or...

I know I ALWAYS have a little ‘test anxiety’ when performing my water tests every week (alk every other day). I always hope everything turns out well and it usually does. Problem is, when it doesn’t (or I have missed a few weeks of testing), it can sometimes bring on a little panic as the...

I have been consistently getting 0 on Nitrate and Phosphate. I have chaeto in a back chamber that’s literally doubling in size in about a weeks time. I give it 18 hours of light which I’d read was recommended. I also have green hair algae forming on the sand. As of yesterday, my ammonia level...

So I’m confused and need some help I have a mixed reef tank softies/lps and I have been testing my alkalinity each day for 7 days to try and figure out how much to dose each day, I am using the Hanna alkalinity checker so it’s pretty accurate, my problem is it’s staying the same I have no drop...

Hello, I was gifted a well-established reef tank back in december (3 fish, some soft coral and a war coral), and I've been trying to learn as much as I can about the hobby to try and keep everyone alive. I bought the red sea marine care and fundamentals multi-test kits, and neither of them have...

Is this even possible? I have a discrepancy that I'm trying to wrap my head around. I did an ATI ICP and got my results back. It says my salinity is 45.69 psu. My IceCap digital, calibrated with 35ppt, reads my SpG at 1.022 My fish are fine, my soft corals and some acans, candycane are...

I have a, used twice par meter. Pretty much new. Original packaging Selling for what I bought it for $357 Comes with wand. Shipping included.

Today I came across a YouTube video... I know,I know, don’t trust YouTube vids. And that is why I’m here asking. The video claimed you really only need to test Temp, Salinity, and PH. What are your opinions on the top, or most important parameters to test?

I'm not sure if this the appropriate forum for this, but oh well. Has anyone had experience with this test kit? I'm wondering if I'm just unlucky or the equipment in this test kit is just junk. I've had this kit for about a month now testing DKH every day. I've noticed the markings on the...

Like new digital Refractometer, comes with original box and RODI/sea water standard samples for calibration. Works flawlessly just no longer need it as I’m no longer in the hobby. Asking $105 shipped.

I'm a bit overwhelmed by the number of Hanna Checker for phosphate. I've opened a poll to see which one you guys use. Could someone correct me if my understanding of these three checkers is wrong? And maybe suggest which one I should get? The HI774 sounds like the best choice for someone who...

Went to my LFS about 2 weeks ago. Ammonia read 0 pmm. Nitrites read .50 ppm. Nitrates read 0 ppm. My LFS advised to start dosing Seachem Stability. They advised me to do once dose and . let it go a week and currently my readings are: Ammonia: 1.0 ppm Nitrite: 1.0 ppm Nitrate: 10 ppm Is this...

So i'm just getting into the world of testing and dosing, how often should i be testing for alkalinity calcium and magnesium as i'm starting to dose. should i be testing weekly? any info would be helpful :)

What is the maximum nitrate reading you know of where corals were kept successfully? What is the “breaking point” for the hardiest of corals? What corals are the most tolerant to high nitrates? Please input especially if you have large predatory fish! Thanks!

Hi everyone, It pains me to say this but I’m getting out of the hobby for a while. I planned to finally set up my dream tank last year, but work + life has kept me super busy & I haven’t had the time or energy. Now, I’m buying a home and am going to be spending the next year doing renovations...

I have a new in box, sealed, Neptune Trident that I won’t be using. Just pay what I paid ($644.59 w/taxes, see receipt) plus $50 to ship. Done! Hope someone who needs one gives it a good home. I can ship Saturday morning if paid in full tonight (6/26)

So I have been using a API nitrate test since I first started my tank, it has seemed pretty reliable but it has just run out so I thought id try the red sea pro test, bought the kit with phosphate aswell. The issue I'm having is that the API test was saying my nitrates are at 10 but I've just...

R2R Community- How do you establish baseline parameters for your reef to really see how much calc/alk/mag your corals are using? I test once a week, but it seems as though numbers can jump around a little. Ive also never tested right after a WC to see what the numbers are once elements have...

Hi, I’m wondering if 490ppm and 9.6 dkh is bad or good? Do I need to try and lower my calcium? Also how do I maintain my alk level at 9.6.

SAMPLE STORAGE AND ITS IMPACT ON PHOSPHATE MEASUREMENT In a discussion on R2R @BigJohnny posed a question about why his Hanna ULR Phosphorous test results were significantly higher (2-3 times) than his ICP test results…. Here is a link to the discussion...