alkalinity

We all know (I think ) that alkalinity should be kept as stable as possible. However there is little information on what 'stable' is so I am starting the poll to see what change average reefer see's on a daily basis when they test their tank. Would be interesting if you added a post to say...

Pickup at East 92nd & Clarkson in Brooklyn - call or text 7184504701 ESV 2 part, 1 gallon of alkalinity and calcium. I mixed up but used very little - $20 UltraReef Reactor - used for 4 months, purchased from UniqueCorals - $110 - I bought it from Uniquecorals.com -...

Changed to a Kalk Rx after 10+ years of running a CaRx on a 250g Mixed Reef system (fish, SPS, LPS, Soft, etc), tank pH had run 7.8 to 7.95 with Alk running 9.5 to 10.2 kh. Currently, with a Kalk Rx, the pH is 8.05 to 8.15 with Alk at a steady 8.3 kh dosing 2.03 g/day across 48 - 3.5 min...

So I'm looking to add an alk and calc doser to my 32. Any suggestions on which one I should get? Thanks so much and as always, Happy Reefing!

I recently got a dosing pump (finally), but I'm having a hard time finding out how much Reef Builder powder can be added to a mix stock solution. I'm going to be using a 2000ml container, but how much powder can I add to the container? Seachem website is not helpful at all (I don't care about...

Why does my alkalinity slowly drop in a tank with no corals? (approx 0.4dkh every 4 days) Ca Mg is constant at the moment. I have restarted my tank and through the cycle is finished I currently have an algae bloom. The tank just has 7 medium sized fish, cycled rock and sand (originally dead...

Hi, I have one lightly used "BRS 2 Part Doser - 1.1 ml Per Minute" for sale. I used the pump to dose Alkalinity to my nano tank for about 3 months, but recently replaced with a 4-head dosing pump. It ran ~45 minutes per day during that 3 months, so the pump has a total run time of about 70...

Have been experiencing low alkalinity with my sps dominant mixed reef tank. Any suggestions as to what I should do? I was wondering if it is possible the current calcium reactor is too small. The tank is a red sea 525XL (525 Liters) plus about 50 gallons of sump. Current alkalinity is 6.1...

hello all as the title says I have another PH question. butt you can see by my picture my ph runs between 7.5 and 7.7 it goes up as high as 7.9 after water changes( indicated by red circles) . I live in a condo with myself and my wife. On a regular basis my ph will drop to around 7.4 at night. I...

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

Hey everyone! There has been a lot of talk these days about the options of automated Alkalinity monitors. The benefits of these is easily seen but the price tag, other required controllers, and honestly the looks of some of the options out there have me reluctant to invest quite yet. So I got...

I currently have slightly low alkalinity between 6.4 and 7 and high calcium (a little over 500). Things in the reef are thriving. I have heard you can set the reactor for the desired alkalinity and the calcium will fall into proper range since it’s all about balance. pH is fine (maybe a...

So my RO/DI water is very weird. The TDS comes out at 2-3 ppm (due to terrible water), but also comes out with high carbonate hardness, which is 8-9 DkH. Right now my water is 3 ppm and 8 DkH. This test has been done by many test kits, including the LFS testing it. However, according to @Randy...

So my alk. is about 17 dkh, which is really high. Even though it's a macroalgae tank, I do plan to put some bounce and jawbreaker mushrooms in there that I have in QT. I heard muriatic acid (or hydrochloric acid) is a way to bring down alk., but I don't know the dosage. I want to bring it down...

okay, so Sunday I realized my tank was in trouble. I should have found out sooner, since one of my corals started looking unhappy by last Thursday. I tested my calcium and got 330 PPM. I'm trying to keep it at 450 PPM, but by Monday it dropped down to 300 PPM. Turns out my Apex was programmed...

Ok everyone, i need some advice/help with my frag tank. I am not seeing very good growth. Most corals seem ok but not flourishing like I would have hoped. I am wondering if PH is the problem??? First a little info. Tank is a 45 gal peninsula ( approx 12 inches deep) draining into a 20 gal...

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...

Hey everyone, I was curious what your favorite 2 part is? I currently use Seachems Reef Fusion 1 and 2 . What do you use and why do you like it?

My Red Sea Coral Pro salt is mixing super low. I've been using the same bucket for years and never have checked until now because I am trying LPS. I have been dosing with b-ionic to maintain my alk, but weekly water changes with such a low alk refreshment make that hard. I use distilled water...

Randy and Co, Can you please recommend the best way to create a 8 dKH alkalinity reference solution that could be used to verify the accuracy of alkalinity tests such as Salifert and the KH Guardian? I have a small jewelers scale and I can get some graduated cylinders if that's what you...

Most hard coral (SPS & LPS) coral keepers im sure are dosing elements back into their aquarium, but how many of us ACTUALLY know what those elements really are? My newest YouTube video tries to explain more ..

Hey everyone. I wanted to know if there is anyone who has the brand “real reef rock” in their tank that have alk issues? I had to quickly break down my 40 gallon acrylic tank due to a seam failure and move all my sps corals into my Nuvo 20 without having the tank fully setup and cycled. My LFS...

I’m in LOVE with my Neptune Apex Controller, and it’s really turned me into a control freak! Which is great because my other love,besides my kids and wife, is SPS, and we all know that SPS love stability! So with the Apex, it allows me to log my parameters and see them in a very detailed way...

Hi all, I'm new to the forum but not new to reefing (almost 10 years in the hobby). So I have a 25g IM Lagoon in my living room. This is also the room where we hang out in most of the day. My issue is that I can't seem to get my pH any higher than 8 sometimes 7.9 on most days. Given the small...

I just wanted topost this quick video I pre-ordered the GHL Maxi during the all the Black Friday sales. I Had my eye on a DOS for a very long time, but couldn't get over the shape of the DOS. I may be unique in that regard, but i had purchased 2 DOS units and two DDR's and sent them back. I...