SKU: 86533348569

Red Sea KH Coralline Gro

Sale price$216.45 Regular price$240.50
Save 10%

Pay in installments of $60.12 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Red Sea KH Coralline GroRed Sea KH Coralline Gro Red Sea KH Coralline Gro is used to provide a complex of carbonate buffers, potassium, and trace elements for the cycling of new marine aquariums and ongoing support in fish only or soft coral systems. Red Sea KH Coralline Gro is a complex of carbonate buffers, potassium, and trace elements such as iron formulated in the ratio taken up regularly by the coralline algae. Coralline Gro should be used instead of regular buffer

Red Sea KH Coralline Gro

Red Sea KH Coralline Gro is used to provide a complex of carbonate buffers, potassium, and trace elements for the cycling of new marine aquariums and ongoing support in fish-only or soft coral systems.

Red Sea KH Coralline Gro is a complex of carbonate buffers, potassium, and trace elements such as iron formulated in the ratio taken up regularly by the coralline algae.

Coralline Gro should be used instead of regular buffer supplements (such as Red Sea Reef Foundation B) during the cycling of all new marine aquariums and on an ongoing basis in fish-only or soft corals systems.

[Note: When using Coralline Gro, only use other supplements containing the elements Potassium or Iron (such as Red Sea Coral Colors B & C supplements) according to a measured uptake of each element. Coralline Gro should not be used in conjunction with Red Sea Reef Foundation ABC+]

Dosage

Ensure that the alkalinity is at optimal values and run the aquarium for 4 days at a stable salinity (compensate for evaporation daily) without adding any supplements. At the end of the 4 days test the alkalinity and calculate the 4-day dosage to replenish back to the optimal levels. Add the 4-day dosage to the system. Divide this 4-day dosage by 4 and use it as the daily dosage for the next week.

After a week of adding the daily dosage, test the alkalinity and calculate the adjusting dosage of each supplement to replenish back to the optimal levels.

  • If the adjusting dosage is significantly different from the previous daily dosage amend (increase/decrease) the daily dosage as appropriate.
  • If the measured level is above the optimal level wait for the excess to be depleted before restarting the daily supplementation with the amended daily dosage.

Continue testing alkalinity every week and make adjustments to the daily dosages as required. If you miss one or more days of supplementing add the complete amount that you have missed but do not exceed the maximum recommended daily increase.

Size: 500ml

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: 86533348569

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 14 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
P
Verified Purchase
Public Service Announcement
Whiting, US
★★★★★ 5
No chemicals that will be harmful!
Set name: Tube - 5 oz. 2-Pack
Ordered this mineral sunscreen looking for something simple and effective, and it’s been a solid option so far. The zinc oxide formula is the main reason I went with it. It doesn’t rely on the same chemical ingredients found in a lot of other sunscreens, which is a big plus if you’re trying to avoid that. It feels like a cleaner option overall. Coverage is good. It spreads evenly and holds up well, even with some water exposure. I’ve used it outdoors for extended periods, and it does its job without needing constant reapplication. It does leave a slight white cast at first, which is pretty typical with mineral sunscreens, but it fades in as you rub it in. Not completely invisible, but manageable. After a few uses, what stood out most is that it doesn’t have a strong smell and doesn’t irritate the skin. It just works without a lot of extras. Compared to standard chemical sunscreens, this feels more straightforward and less harsh, especially for regular use. For the price, it’s a great value. You’re getting strong sun protection without the added ingredients some people try to avoid. If you’re looking for a mineral-based sunscreen that’s effective and a bit cleaner in formulation, this is a solid choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
A
Verified Purchase
AZ since '03
Battle Creek, US
★★★★★ 5
Great mineral sunscreen that actually works
Set name: Tube - 5 oz.
Blue Lizard Sensitive Mineral SPF 50 has become my daily go-to. It goes on smooth, doesn’t leave a weird white cast like some mineral sunscreens, and gives solid protection. I like that it’s 100% mineral with no harsh chemicals and has organic aloe vera in it, so my skin feels hydrated instead of dried out. No greasy feeling, no strong scent, and it holds up well even when I sweat a bit. Been using it for a few weeks now and it performs exactly how I want. Small bottle but a little goes a long way. Definitely recommend if you want a simple, effective mineral option.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
H
Verified Purchase
HyeYoung Cho
San Leandro, US
★★★★★ 5
Gentle, hydrating with a slight white cast
Set name: Tube - 5 oz.
Really solid mineral sunscreen. Goes on smooth, not too thick, and feels lightweight but still hydrating. It does leave a slight white cast, which I actually like since it feels like better protection. The formula feels gentle and doesn’t irritate my skin. Great for daily use, and the UV color-changing cap is a nice bonus. Would repurchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
M
Verified Purchase
Mlnkjns
Boise, US
★★★★★ 4
Great sunblock.
Set name: Stick - 0.5 oz.
Love this stuff. It’s the only sunscreen that doesn’t sting my eyes. It works really well. It goes a long way. Lil dab will do ya. Maybe I use too much each application. I live in Florida and put it on my arms and face everyday. It does leave white smudges, smears and handprints on things.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
D
Verified Purchase
Deanna Yanda
Alexandria, US
★★★★★ 5
Fabulous product! Made my skin feel soft!
Set name: Tube - 5 oz.
This product goes on smooth and a little goes a long way. I used it today for the first time and was very pleased that it held up to my sweating in the heat doing farm work! It doesn’t bother my very sensitive skin, in fact it is quite soothing. A little goes a long way. With about a quarter size amount I was able to do both arms and my face. I was outside for several hours and didn’t burn like I usually do. It is basically unscented which is nice and isn’t sticky.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026

recommand products