Free eGift Card added at Checkout with qualifying purchase and automatically added to your Chewy account after your order ships. Customer must be logged into account to view all applicable promotions. Must add $100.00 worth of eligible items and enter code SPRING at checkout to receive $30 eGift card. Excludes Purina Pro Plan, Fancy Feast, select Merrick, Friskies, Purina ONE, Purina Beneful, Purina Beyond, Back to Basics, Better Than, Canine Carry Outs, Gravy Train, Kibbles 'n Bits, Meaty Bone, Meow Mix, Milk-Bone, Milo's Kitchen, Nature's Recipe, Pounce, Pup-Peroni, Rachael Ray Nutrish, Snausages, Tidy Cats, Tidy Max, Dog Chow, select Goody Box, Puppy Chow, Cat Chow, Purina Bella, Tomlyn, Whisker Lickin's, Vetoquinol, Wisdom Panel, 9Lives, Veterinary Diet items, Prescription items, and other select products. Subject to Chewy Gift Card Terms and Conditions found here: https://chewy.com/app/content/gift-cards-terms. Gift Cards cannot be returned, refunded, or redeemed for cash except as required by law. Limit 1 gift card per order, limit 3 orders per customer. This offer is non-transferable and may not be combined with first time Autoship offer. Valid from 3/20/23 7:00AM EST until 3/27/2023 6:30 AM EST, while supplies last. Information subject to change without notice. Additional terms and conditions may apply.
List Price is the suggested retail price from a manufacturer, supplier, or other retailer. It may not necessarily reflect an actual price offered on our site or elsewhere.
Autoship (Save an extra 5%)
Save 5% on all future Autoship orders
Set your schedule based on your pet's needs
No fees, no commitments - skip, change or cancel anytime.
FREE 1-3 day shipping over $49
About This Item
Concentrated, alkalinity-boosting compound provides an important energy source to support strong coral growth.
Plays a key role in helping to maintain optimal pH levels.
Contains USP (Pharmaceutical) Grade sodium carbonate, sodium bicarbonate and sodium borate. Does not contain gluconates, nitrates, or phosphates.
High quality and ultra pure product that's free of unwanted contaminates.
Helps to offset ongoing depletion caused by coral absorption, coralline algae and organic compounds.
Support strong coral and invertebrate growth and maintain optimal pH levels with Fluval Sea Alkalinity Water Treatment. Alkalinity plays a key role in healthy coral growth. Fluval Sea Alkalinity Water Treatment helps to offset the constant depletion of alkaline by coral, coralline algae growth, supporting buffering and natural biological processes. It is made of pharmaceutical-grade sodium carbonate, sodium bicarbonate and sodium borate, free of unwanted contaminates and does not contain gluconates, nitrates or phosphates.
Add 10 mL per 13 gallons of water once a week. Weekly dosage provides 25 mg/L of alkalinity. Regular alkalinity supplementation is strongly recommended. Maintain alkalinity level between 125 – 200 mg/L as CaCO3.
Note: It is recommended to maintain calcium at a range of 400 – 450 mg/L to ensure proper balance with alkalinity.
Always dose calcium and alkalinity supplements several hours apart.