--- product_id: 314353228 title: "Reef HD - Reef Flux 10 capsules" brand: "reef hd" price: "Β£42.27" currency: GBP in_stock: true reviews_count: 5 category: "Reef Hd" url: https://www.desertcart.co.uk/products/314353228-reef-hd-reef-flux-10-capsules store_origin: GB region: United Kingdom --- # Treats up to 100 gallons 10 potent capsules Lab-tested purity Reef HD - Reef Flux 10 capsules **Brand:** reef hd **Price:** Β£42.27 **Availability:** βœ… In Stock ## Summary > πŸ’₯ Clear water, healthy fish, zero compromises! ## Quick Answers - **What is this?** Reef HD - Reef Flux 10 capsules by reef hd - **How much does it cost?** Β£42.27 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/314353228-reef-hd-reef-flux-10-capsules) ## Best For - reef hd enthusiasts ## Why This Product - Trusted reef hd brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Optimized Dosage:** 10 capsules treat large 100-gallon aquariums efficiently - β€’ **Pure & Additive-Free:** No fillers, ensuring safe and targeted action - β€’ **Trusted by Aquarists:** Highly rated with 4.2 stars from 1,100+ users - β€’ **Dual-Action Algae Control:** Powerful against bryopsis algae for crystal-clear tanks - β€’ **Precision Fluconazole Formula:** Clinically effective fungal fish infection treatment ## Overview Reef Flux by Reef HD is a premium fluconazole-based aquarium treatment designed to combat fungal infections in fish while also effectively controlling bryopsis algae. Lab-tested for purity and free from additives, each pack contains 10 capsules that treat up to 100 gallons, making it a trusted choice for serious aquarists seeking both health and clarity in their aquatic environments. ## Description Reef Flux is a fluconazole treatment that is effective against certain fungal fish infections. It contains no fillers or additives and is lab tested for purity. A notable side-effect of fluconazole is that it is extremely detrimental to bryopsis algae. Previously known as Algae Buster, Reef Flux is an aquarium fluconazole treatment that is effective against fungal fish infections. To avoid unintended nutrient spikes it should not be used in tanks with refugiums that have Caulerpa and Bryopsis. Review: Worked well for me - I never really go the chemical route for my tank but this was the last resort for my 3 month long bryopsis battle. I went into panic mode about using this product while reading the reviews after I already dosed it. Needless to say, None of my inverts, fish or coral were unalived or stressed. 90% of my bryopsis is cleared up and it’s only day 7.My surface agitation is pretty good but I added an airstone to my sump for safety purposes. Dosed 10 capsules to my 150 gallon total volume. I’m not sure if they fixed what was harming the livestock or something I have done that prevented a major die off. I wouldn’t 100% trust this product again unless I see more positive reviews. Review: Not good for some fish - After adding this into my tank. Three anthias dead. and LPS coral polyps shrinked. Hair algea still existing.It was not good for my tank. ## Features - Item Category: Aquarium Pond Water Treatment - Item Trademark: Reef HD - manufacturer: Reef HD ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B078SYK9N2 | | Best Sellers Rank | #49,911 in Pet Supplies ( See Top 100 in Pet Supplies ) #411 in Fish Medication & Health Supplies | | Brand | Reef HD | | Brand Name | Reef HD | | Customer Reviews | 4.2 out of 5 stars 1,102 Reviews | | Item Form | Capsules | | Item Weight | 0.63 Ounces | | Item form | Capsules | | Item weight | 0.63 Ounces | | Liquid Volume | 100 Gallons | | Liquid volume | 100 Gallons | | Manufacturer | Reef HD | | Pet Type | Fish | | Target Species | Fish | | UPC | 867038000415 | | Unit Count | 1 Count | | Unit count | 1 Count | ## Product Details - **Brand:** Reef HD - **Item form:** Capsules - **Item weight:** 0.63 Ounces - **Liquid volume:** 100 Gallons - **Unit count:** 1 Count ## Images ![Reef HD - Reef Flux 10 capsules - Image 1](https://m.media-amazon.com/images/I/61RF61s7E8L.jpg) ## Questions & Answers **Q: Is this 100% fluconazole? No other Ingredients.** A: I would like confirmation of this question also. According to everything I can find it is only 200mg of Fluconazole, but nowhere from ReefHD. Are additional ingredients not required to be disclosed on the label? **Q: How many milligrams is each capsule?** A: Should be 200mg. It doesn't say on the bottle, but 1 capsule treats 10 gallons and you need 20mg per gallon. **Q: Is it normal to see no results in 8 days with green hair algae and bubble algae?** A: I've only ever used this for Bryopsis, so it may be different for bubble and hair algae. But it did take quite a while to go into effect for the Bryopsis. 8 days was not enough to see any change. It took closer to 14 days to see any reduction. **Q: I have a 40gal. So, two doses here. Should I dose once per week or once every two weeks?** A: I believe only the one time then add airstone for extra oxygen do a water change as directed on the bottle ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked well for me *by K***R on 21 September 2026* I never really go the chemical route for my tank but this was the last resort for my 3 month long bryopsis battle. I went into panic mode about using this product while reading the reviews after I already dosed it. Needless to say, None of my inverts, fish or coral were unalived or stressed. 90% of my bryopsis is cleared up and it’s only day 7.My surface agitation is pretty good but I added an airstone to my sump for safety purposes. Dosed 10 capsules to my 150 gallon total volume. I’m not sure if they fixed what was harming the livestock or something I have done that prevented a major die off. I wouldn’t 100% trust this product again unless I see more positive reviews. ### ⭐ Not good for some fish *by S***T on 21 May 2026* After adding this into my tank. Three anthias dead. and LPS coral polyps shrinked. Hair algea still existing.It was not good for my tank. ### ⭐⭐⭐⭐⭐ SOME REEF MEDS DO WORK AFTER ALL!!! *by H***R on 8 August 2026* I have been reefing for over 30 years and I never had to deal with Bryopsis until now 8/1/2026 so I just wanted to let people know that although we don’t like to try meds for out reef πŸͺΈ because they never work or end up killing our coral this stuff really works. I manually removed as much as I could and I dosed 50% of the recommended dose on my 100 gallon so 5 pills πŸ’Š.. I waited two days and dosed the other 5 pills πŸ’Š and within a day or two my bryopsis was all gone nothing was left it detached from all my rocks , corals and even snails 🐌.. it works it really does so if you use it hopefully you have the same experience I did with it πŸ‘πŸ‘ ## Frequently Bought Together - ReefHD Reef Flux Anti-Fungal Treatment (100 gal) - Chemi-Clean - 2 g - Seachem PhosGuard, 100 mL bagged - 67101850 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/314353228-reef-hd-reef-flux-10-capsules](https://www.desertcart.co.uk/products/314353228-reef-hd-reef-flux-10-capsules) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-10-02*