Hey champ been watching your videos from the UK! Completely inspired! had to sell my reefer 250 3 years ago due to moving countries and cannot wait to get back into the hobby! Keeping up to date with all the latest gadgets through your channel. Keep the videos coming.

Calcium Reactor for the WIN!!! I tune mine exactly like you. Constant effluent and lower PH in the reactor until my alk stables out. Alk dropping, give it a bit more gas to lower PH inside the reactor. Alk climbing back off the gas a tiny bit. Easy peasy.

Excellent video Sam

Thanks, great and informative video.🙏🏻

I agree with you 100%. I installed a calcium reactor on my tank about six months ago. I will never have a tank without one. I did the dosing thing however it was always running out or getting low on chemicals.Yes my alkalinity was up and down. However with the calcium reactor my alkalinity stays 8.3-8.4 on cruise control. The reactor comes with a learning curve however once you figure it out. As you say happy days😁 . Thanks for the great video, please do another video with more depth on calcium reactors. Two thumbs up.👍

Great video Sam!

Great Vid Sam! In my own experience and method, all I do is peg the PH at 6.5 in the reactor and dose the amount your tank requires. As long as you use coarse media you shouldn't have any issues.

Thank you. I’m going through this issue myself. Your aquarium looks awesome. The only thing it’s missing is around a dozen Tangs, beginning with the Powder Blue, of course, and their cousins. Thanks again for your videos and information.

Awesome mate - thank you

Great video! don't forget about the Low PSI gauge...it controls the bubble size as well as the psi on the reactor itself.

Sam again many thanks 👏👏haven’t got one yet , but I’m very interested in one ,as it’s all about stability 👍and less liquid used 😀🏴󠁧󠁢󠁷󠁬󠁳󠁿✌️

thanks for detailing the reactor steps im collecting the parts to make a reactor

I watched a BRSTv investigates today, it showed how much phosphate was put back into the tank by the media, the only one tested that put zero back in was the Triton media, was very interesting.

Hey Sam, nice video, I just today went back to Aquaforest 3 part because i had better results with AF then with the calcium reactor. coral wise.

well done.

Thanks for the insight. I’ve never considered the dosing container size as a factor. I think that’s going dictate my need for a CaRx almost immediately as I don’t have much place for the containers. Thanks mate.

Great video! I have seen people using a combo: dosing and calcium when the reactor would not be enough for a large tank.

Adding a CaRx to my system. Should have my Geo CaRx shipped next week. Using a carbon doser reg and a kamoer fx-stp to pull.

Its expensive at the start but cheaper in the long run. Im still using 2 part dosing esv b ionic since theres not a very high demand. I will definitely go with calcium reactor if i go with a bigger tank.

I believe Caribsea ARM has a efficient melting point around 6.3-6.5. In my ACR the ph is around 6.1 and seems to be holding strong. I do plan on switching to destaco media due to the purity and lower Melting point.

Always mixed randys recipe, now with a KHG a calcium check every two weeks is all I need. Magnesium is always high and have never needed to dose, (15 years) even in heavy sps, but I do regular water changes. CO2 bottles were a pain in the butt on my fresh tanks. Getting them filled, the expense of the regulator etc , dunno Then add a kamoer dose pump extra $400 etc I’d say 2-3k change over.

Currently getting one tuned in on my tank definitely need to get a continuous duty pump to feed it, running off a manifold sucks haha

1:40: Every American watching looks up the definition of Fortnight.

Hey Parker Great video again mate. Question on the media, I saw in another comment you mentioned about adding the magnesium media. I also noticed in the arm mix it says it has high magnesium and other trace elements. What portion magnesium media do you add and are there any other trace elements you need to add to the media. I know you touched on it in the video but wondering your actual mix Thanks in advance

Hi thanks for another great video! I have not started any dosing and my tank is currently consuming 0.3 dKH per day. It's a 30 gallon tank and I'm moving to a bigger tank very soon. I used to rely fully on water changes but probably won't be the case anymore in the new 80 gallon tank. Should I just invest in a Calcium Reactor now for stability rather than dosing parts (noted on your disclaimer at the start of the video, too !) ? Thank you !

Hey Parker, I recently installed Calc reactor and it stabilized alk/calcium very well. Helped PH a bit too. 100x better than dosing IMO. Took lots of your lessons from previous videos. How do you keep up your PH?? My tank is in living room like yours with high traffic of kids and so on. Most of the time keeping doors and windows opened is not an option. It’s March now and we have -6 outside. I’ve seen your co2 scrubber older video. Do you have any plans for to use a co2 scrubber in your dream tank?? Or are you planning to go PH buffer route? I’d like to see a vid on your PH when you are ready.

Thanks Sam, great video, it's taken away some of the mystery for me. One question, our pH naturally sits at 7.9 and I stopped chasing a higher number a long time ago. Will the calcium reactor potentially bring that down even further

I would absolutely love to go with a Calcium Reactor in place of my 2 Neptune DOS/DDR setup. Someone needs to not only sell an “Everything you need” calcium reactor setup, but be able to offer them at a reasonable price as well as keep it in stock. I’m looking at you @Bulkreefsupply.

Great video. I notice some reactors have a space for ph probes. Is this for the same concept you spoke about in managing and monitoring the ph while tuning to your tank? As you add more coral or as it grow, this process with have to start over? Or is it automatic?

Great video. Can you mix 2 different brands of media? Like reborn and arm?

Hi Sam, how does the ph controller work? Does it turn the CO2 regulator on and off or does it add another valve to the CO2 feed. Does the carbondoser regulator mind being constantly switched on/off if this is what the Ph controller does? Also, my tank is only 300l, (probably too small for a cal reactor but I can’t help myself and am getting one 😂 ), what approach would you recommend I take to prevent ph dropping too much? Thanks mate

I would not trade my calcium reactor for any other system. Whatever the debate, the coral growth I see is probably (assumption) on par with any 'in the groove' aquarium. A reactor is just another doser but the natural balance is easier. I use DaStaCo because its easy.

When I think, Calcium Reactor. I think about Shells, Clams etc. What prevents the usage of these materials within a reactor? Assuming one boils them first, to avoid pests/bacteria and stuff.

Hey Sam, many greetings from Germany. Can you make a short video where you show how you mounted your doors to the cabinet? Best regards

Nice but looks like it would take a lot of space. If you has a small aquarium, say a CADE 900/1200 would you still use one?

Do you add any additional magnesium media to the reactor?

Hi Sam, I have followed your video advice on changing from 2part to a Calcium Reactor. I have fixed my flow to 10ml/min and fixed my bubble count to 1 bubble every 6 seconds. Currently, I have reached 6.9 high & 6.8 low but it has now taken 8 hours to reach to this new low pH setting. At these settings my effluent dkh measures 24.3 dkh. My tanks alkalinity all along has continuously dropped throughout, so I keep on adding enough 2part to bring it back to my target at dkh of 9.0 If I want to now keep my existing pH set points as is, but start to change the flow rate instead, what effect does a increase in flow rate have on my effluent's dkh and also what would be the overall result on my tank's Alkalinity? Do you think that I be better off lowering the bubble rate lower to say 1 bubble every 5 seconds?

Hi from the UK.. Can I ask what ph probe/controller you are using?

Hi Mate where did you get the Co2 dosing regulator. Thanks

Hey Sam I have a question I noticed you have a calcium reactor but also really purchased a Reef Octopus KS250 Nilson Kalk Reactor. Why have a kalk reactor when you already have a calcium reactor? I am a little confused. Thanks in advance!!!

Hi Sam, what ph controller do you use on your calcium reactor and where did you purchase, cheers

Great video. One question from me - And for once its not about snails :) What's the smallest tank size you'd recommend / suggest / think is worth it for a Calcium reactor? I've only just started dosing - and currently doing the manual syringe method, but I can already see this wearing really thin really fast. I'm not too worried about my dosing volumes ever going off the scale (I've only got a 280 litre system), but the appeal of this is definitely the ability to avoid juggling the individual Alk / Calcium / Magnesium levels...

Hey Sam what ph probe do you use? And can you have a ph controller as well on solenoid to switch on and off automatically? If ph drops too low or you turn your effluent down?

How can we add the trace element when using the calcium reactor?

Reason why I never run a calcium reactor, is because I'm afraid of gas leakage. What parts, if any, should I seal or use teflon tape? I never had one.

Hey Sam can I use crushed coral r dead corals for reactor

Hi Sam, I’m looking at ordering a carbondoser regulator. What fitting option should I choose for use in Australia? CGA320 or DIN477? Thanks

What about the affect of the reactor on your tanks pH?

Hi. Parker can tell me which aquarium controller you like the best ? I'm not computer savy . So which is the best for a noobie like me . Thx

I love that shirt where did you get it !

Hi Sam, did you get your carbondoser regulator from Australia?

What calcium reactor would you recommend?

How does the calcium reactor replace dosing mag and alk tho ?

Hey Sam can u make vedio of water testing waiting for it.......

1st comment get free calcium reactor 😉

I use with arm carib sea media and this not keep my calcium at recommended level it's keeps my calcium at 340 and I use with dosing pump for calcium to keep him in 420 so calcium reactor for Me it's not the best option but still I like him and continue use with him because my alk and mag very stable and I have fully sps dominant tank

Why adjust the ph instead of effluent flow? Why not peg ph and then increase effluent dosage, this seems to be simpler with less variables.

The funny thing is I'm looking for one

You fail to touch on one very important point. Alkalinity consumption varies between day and night with two-thirds of your alkalinity consumption happening during the photoperiod. So if you set your calcium reactor to dose at a constant rate 24 hours a day you will end up with a large daily swing in alkalinity which is exactly what you don't want. You must see this if you are using the KH guardian. I was running a calcium reactor and I was wondering why some of my Acro's were not doing well. It turned out I was getting as much as a 0.5dkh swing within a single day! I ended up putting the feed pump on a timer and switching it off several times during the night to try and smooth out the swing. It works to a certain extent but the reactor was also sending my tanks PH into the ground so I switched back to dosing and already my corals are looking better. Calcium reactors are great for large low demand tanks but for 90% of hobbyists out there dosing is better, you won't have the PH issues and you can control the dosing much more precisely.