calcium

Full set of Hanna Electronic Test Kits. Set of 8. Used for roughly 6 months. Work and look perfectly. All reagents are current with at least a year before expiration besides the Calcium Checker which includes 0 reagents. They expired last month. This entire kit would retail for over $500...

Hello reefers! I have had my Red Sea Reefer 425xl setup for about 4 years now and have been reefing since for about 15 years now. To be completely honest though, I don't have much experience when it comes to managing different levels in the tank. I have always stuck with biweekly water...

Hello all, I have a 25-gallon water box with soft corals, a frog spawn, and leptastrea. I also have a small derasa clam, some snails, crabs a few hardy fish. I'm saying that to see if this would affect anything. I have been using all for reef premixed ready-to-use bottle and have been dosing...

New 90 gallon tank w/ 20 gallon sump (3 weeks old). Started testing Calcium with API kit and seeing (fast) linear drop. Just trying to understand why it's moving so fast and whether this is something I should address via Reef Fusion 2 part additives. Current Livestock & Date Installed...

Hi everyone, I recently purchased a balling method to improve the stability of my aquarium's parameters, but the recommendations suggest balancing the parameters before starting with balling through water changes or other products. I'd like to know what products or methods I could use to...

MRC CR-2 dual chamber calcium reactor. Handles up to 500 gallons. Media capacity 14lbs. Chamber size 18"x4 1/2". Base size 12"x12". Danner Model 2 utility pump 250GPH included. This is the chambers and pump only. 200.00

Has anyone used Quantum Easy E and Quantum Easy Z? I am guessing the extra elements are dosed based on the consumption of the primary 'alkalinity and calcium'? https://www.quantumaqua.com.au/product/easy-reefer-easy-z/ https://www.quantumaqua.com.au/product/easy-reefer-easy-e/

BUBBLE MAGUS T11 vs JEBAO DP4 Hi guys i am planning to get a dosing pump for stabilizing my ca and alk. Which one do you suggest? I saw some negative reviews about jebao but there wasnt any for bubble magus t11

I bought this set a few years ago and used one time. These are in brand new condition. The reagents have expired. I would like to trade do zoas, mushrooms, torches, hammers or any soft coral that gets my attention.

Sharing my experience for others that may be experiencing the same issue. Basement 150g mixed reef lagoon with total water volume of about 225g While struggling with low PH (7.7 - 7.8), I went through PH chasing journey and found the following solutions: - DIY Co2 Scrubber - Kalkwasser reactor...

Hi all I’ve recently purchased my fist lps frogspawn coral and it’s my first time dosing foundation elements I’ve use the reef app calculator to accumulate my fist dose according to my current levels I’m not sure if the calcium has calculated correctly anyone know if it’s correct my magnesium is...

Greetings! I’m generally just a lurker, and I don’t usually post. But I’ve run into an issue that I’m not sure how to handle, and I wanted to see if the crowd here might have some good ideas. Background I have a 75 gal reef tank (probably around 80 gallons total volume). The tank has been...

Hannah nitrate HR, phosphorus LR , copper HR with validate reagent, 110 for all 3 shipped. I will give 2 extra tube and extra reagent for phosphorus

How to Start Dosing Calcium, Alkalinity and Magnesium in Reef Tanks If you're ready for SPS, or even some LPS coral and need to maintain stable calcium and alkalinity, this is for you! Link: How to Start Dosing Calcium, Alkalinity and Magnesium in Reef Tanks Don't make critical mistakes...

I have a Hanna Calcium Colorimeter HI758 for Marine Water for sale. This was only used a handful of times and includes the reagents. Add $5 for shipping.

I have 3 test kits available for sale (calc, mag, alk). I bought them hoping I could use them, but can't since I'm colorblind and can't see the transitions well. They have either never been used or used once or twice. I live in the Woodinville area and would either prefer pick up or Woodinville...

$40+ shipping Have used twice. Will ship for $10 to lower 48.

Reef Octopus Calcium Reactor - CalReact 220 for sale in Tampa, FL. Used only 1 1/2 years. Excellent condition. $400.00.

Hey all. Been following the community over the years now and finally decided to create an account and become more active. I've been in the hobby for ~15 years now. Went from a 25g to my current 40 breeder (bare bottom) ~5 years ago. Unfortunately, I lost interest in the hobby going on a few...

Hello! Just a question to make sure I’m not missing a pest or something. My Frogspawn reached 16+ heads this spring and has looked great the whole time, but it suddenly split down the skeletal base into 2 colonies. Neither seemed bothered by the change. Last night, my Hammer of 25 heads...

Hi reefers, I have a preowned REEFER XL425, I started it from very beginning 2 months ago. A week ago it got through cycling so I bought a pair of Nemos, 5 mixed frags, 3 shrimps a 4 snails. Everyone look great. Except the fact, that the chemistry is weird and now the massive green outbreak...

Has anyone used these reagents from www.abcreagents.com for their trident? Supposedly they work just like the Neptune reagents but obviously they are much cheaper. If people have any experience with these, please comment. If they work well, this will definitely be a game changer!

Hey guys! For sale are a couple of Hanna Checker colorimeters. Calcium is like new, never used. REAGENTS HAVE EXPIRED! Asking $50 Alkalinity is lightly used. NO REAGENTS INCLUDED! Asking $45 Or take both for $85! Prices include shipping and PayPal fees. Please PayPal only, no Venmo, etc. US...

Hello, I purchased Maxima Clam about 3 weeks ago, and noticed that it's mantle has become flaky and cracked, like asphalt that was heavily salted in the winter (It's more clear when you zoom in on the picture). It's receiving about 150 PAR and has low to moderate flow. Alkalinity is at 8.2...

Hey all, it's been a few years since I kept a saltwater tank - my expertise is definitely in freshwater and turtles. In the past I had 2 thriving reef tanks with fish & LPS but once my ex and I broke up I kept the freshwater and he took the salt tanks (he was definitely the salt expert!) So...