calcium

Hi all, I don’t assume there would be many crab experts here but i know a lot of you are aquarium chemistry experts and can maybe assist me. I’m trying to get to the bottom of why my Dungeness crab’s claw tips are bleaching/receding (and even breaking off). He is also getting some bleaching on...

So I’ve been trying to start dosing my reef tank and was completely doing it wrong. Now I’m starting over and I’ve been testing, dosing, testing everyday for the past couple of days. I did do a water change on the first day due to my calcium being 600+ (again I was doing it wrong before) now...

Hey everyone! I recently started a 25-gallon Water Box Peninsula tank using dry Marco rock, Ocean Direct sand, and Tropic Marin Pro Reef salt. I added one piece of live rock from a local fish store to seed biological diversity, but the majority of the hardscape is dry rock. I’m about two weeks...

This is an opened, but never used Hanna HI758 Marine Calcium Checker. The reagents don’t expire until 03/2026. Asking only $50 shipped to the lower 48 states only, includes PayPal fees.

Hello all, I started with a 17 gallon tank and did not need much testing as it was mainly a Fowler. I now have 3 GSP and a red mushroom/ leather? What should I be testing for with these? As well I am starting my 210 and hoping to put corals and fish in around June/ July. In this I’m mainly...

All the bottles are unopened or 95% full, this deal is insane, please take it off my hands by tomorrow night latest. Pick up in Manhattan Flatiron district.

Hello, So I have noticed that my Calc and Magnesium have been dropping as my Alk has went up. It is now getting to the point where I am starting to panic and need to do something. salifert tests kit: Alk: 9.9 Dkh (it was low, 7Dhk so i got it up via dosing) Calcuim: 320 (was around 400)...

For me this has been a hard question to google so I'm bringing it here. I've only ever kept softies, so I'm unfamiliar with all the nuances of maintaining hard corals. In my inexperienced opinion, they seem to be ironically way more sensitive than softies despite having tougher exteriors. What...

Hey everyone this is my first post. I started my 50 gallon IM lagoon at the end of November. I started testing my alk, calcium, and magnesium on December 23. My alk started about 11.9dkh, my calcium started at around 290ppm, and my magnesium was at 1100ppm. I figured I’d do water changes and see...

Hi all and thanks for reading! I've been having some issues with dropping Calcium and Magnesium and rising Alk despite dosing All for reef (A4R) and doing water changes as well. My system is a 40 gallon cube with a 10 gallon (running volume) sump. In total after equipment, sand, and live rock...

SOLD

Hi all. So started my new RSR 350 a few weeks ago. I started with two bags of live sand, new dry rocks(Link here) , Fritz-Zyme Turbo Start, and iQuatics pro salt (Link here) I have two clowns and a tang in there and a mixture of LPS and SPS frags. Current levels are Salinity: 1.027 (higher...

Hello all have questions about my calcium levels hovers around 400 to 410 been dosing all for reef they say to monitor alkalinity levels mine stays around 8.4 even after increasing amount of liquid it's 240 gallon tank I'm dosing 90 ml of all for reef and a extra 230 ml of reef factory calcium...

Changing my daily Alk dose solution from soda ash to Na-bicarb. Should I double the volume added per day of Na-bicarb? Should I do the same for Ca dose solution? So if I’m currently at 32 mL/day of Soda Ash and Calcium Chloride. Propose to change to 64 mL/day of Na-BiCarb and the same for...

I have: HI713 Phosphate LR $35 HI781 Marine Nitrate LR $35 HI758 Marine Calcium (ppm) $40 Need reagent Take all for $100. Located in NYC, shipping will run $10-15 depending on where

**SOLD** 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...

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...