SKU: 81060554319

Red Sea 4-Part Complete Reef Care Dosing System

Sale price$669.15 Regular price$743.50
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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14

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Description

Red Sea 4-Part Complete Reef Care Dosing SystemRed Sea 4 Part Complete Reef Care Dosing System Red Sea 4 Part Complete Reef Care Dosing System is used to replenish all 36 major, minor, and trace elements necessary for optimal coral growth and coloration in reef aquariums. As Simple as 4 Bottles and 1 Test Per Week 36 Major, Minor, and Trace Elements Pairs Seamlessly with ReefDose 4 Dosing Pump Three Sizes Available to Match Your Tank Size The new Complete Reef Care is based on Red Sea's 30 years

Red Sea 4-Part Complete Reef Care Dosing System

Red Sea 4-Part Complete Reef Care Dosing System is used to replenish all 36 major, minor, and trace elements necessary for optimal coral growth and coloration in reef aquariums.

As Simple as 4 Bottles and 1 Test Per Week

  • 36 Major, Minor, and Trace Elements
  • Pairs Seamlessly with ReefDose 4 Dosing Pump
  • Three Sizes Available to Match Your Tank Size

The new Complete Reef Care is based on Red Sea's 30 years of research into the needs of corals in artificial environments. It's a proven solution for optimal coral growth and coloration, providing you with a stunning and healthy tank. Complete Reef Care replenishes all 36 major, minor, and trace elements that get used up regularly by corals. These elements get used up in relatively predictable ratios, so Red Sea recommends testing calcium once per week to determine the dosages of all 4 parts.

How Much Should I Dose?

Bottle 1 (Calcium): Start by dosing the recommended amount on the bottle.

Bottle 2 (Alkalinity): Dose 2x the volume of your bottle 1 dose.

Bottle 3 (Iodine & Potassium): Dose 1/2 the volume of your bottle 1 dose.

Bottle 4 (Iron & Bioactive Elements): Dose 1/2 the volume of your bottle 1 dose.

ReefDose 4 Ready (sold separately)

The ReefDose 4 conveniently has just the right number of dosing heads for the Complete Reef Care dosing system. When Connected to the ReefDose, your ReefBeat app will automatically adjust the dosages of bottles 2, 3, and 4 based on your selected dosage volume of bottle 1, making automated dosing to your reef tank easier than it's ever been. Better yet, since the four parts are provided in the same ratio that they should be dose in, you'll finish all four bottles at exactly the same time.

Multiple Sizes Available

Small: Recommended for aquariums up to 40 gallons / 150L (approx. 3 month supply)

Medium: Recommended for aquariums up to 80 gallons / 300L (approx. 3 month supply)

Large: Recommended for aquariums larger than 160 gallons / 600L (approx. 3 month supply)

Note: If your aquarium utilizes a macro algae refugium, Red Sea recommends using their 7-part Reef Foundation and Trace Colors system instead. This way, you can adjust individual trace elements to account for their unique uptake ratio by macro algae.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 81060554319

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Mimi
Los Angeles, US
★★★★★ 4
Truly Helped My Cracked Heels
Color: Original Grey
I didn't include a photo cause they look exactly like their advertisement photo. I so liked the silicon-type heel lining as it kept the heel-repair cream on my heel and did not get soaked up by the sock. But, it is so, so slippery when walking around in them! Take care to be mindful when you set each foot down as the lotion can slide your heel across the sock quite a bit. If these socks were for an elderly person, I would have them only sit while using the sock - no walking around for fear of falling. I have larger ankles and found that having both the top and the bottom hems/elastic, etc. the same size to be quite troublesome and was not a nice feeling or fit on my upper hem that hit my ankle. Don't get me wrong, I am so glad that I got them and I continue to use them and they are helping my horribly-cracked heels greatly, but I find that I have to keep moving the top hem up and down so that it doesn't stay in one position as it cuts in to my ankle. My feedback and advice might be to please make the upper hem somewhat larger than the one that is on the bottom and goes over my actual foot. They really should not be the same circumference...or else make different sizes - S, M, L, etc. That's really my only complaint or "con" to ordering these. I think they are a great concept and I like the fact that I can throw them in the washer and dryer.
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Reviewed in the United States on June 8, 2024
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Verified Purchase
SC6218
Charlottesville, US
★★★★★ 5
Actually works, and really well
Color: Original Grey
I bought these because I got them on a great deal and was quite skeptical, but they actually worked exactly as advertised and I saw a huge difference after the first night! I understand why they don’t cover the whole foot like a regular sock (it would be stifling), but it would be incredible if they made a pair that go forward enough to cover the ball of the foot. One pair lasted about 3 weeks before the moisturizer wore out (I did notice a dropoff after washing, so for best results put them on when you’re clean and just for overnight, so you can avoid washing). Apologies for no photos- no one wants to see the before photos. These work so well I’ve just come back to order more even though I’m now paying full price. Definitely, definitely recommend.
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Reviewed in the United States on May 28, 2026
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Verified Purchase
Liana
Boise, US
★★★★★ 5
Comfortably and works
Color: Original Grey
❤️ I used these with magnesium lotion on my heals for 3 nights, soaked my feet every morning and cracked heals are gone!
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Reviewed in the United States on April 25, 2026
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Verified Purchase
T. U.
Chelsea, US
★★★★★ 5
A game changer for deep heel cracks and psoriasis!
Color: Original Grey, Color: Original Grey
If you have deep cracks or psoriasis on your heels, get these they are a total game changer! They hold in Vaseline and topical meds perfectly while I sleep, providing much needed relief without getting all over my sheets. My heels are healing faster and my callouses are softer and don’t split open because the moisture is trapped against the skin all night with the built in gel cushion lining instead of rubbing off. So much hydration. The fact that it is a 2 pack is perfect because while one pair is being washed and drying, you still have a set to wear. Very soft, stretchy, breathable, and easy to sleep in. I highly recommend them!
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Reviewed in the United States on January 31, 2026
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Verified Purchase
James P McMahon
Lowell, US
★★★★★ 5
Great item!!
Color: Original Grey
These socks actually work!!! No more split skin on my heels!!
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Reviewed in the United States on May 9, 2026

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