--- product_id: 4156361 title: "Flourish Potassium 500 mL / 17 fl. oz." brand: "seachem" price: "Rp770884" currency: IDR in_stock: true reviews_count: 13 category: "Seachem" url: https://www.desertcart.id/products/4156361-flourish-potassium-500-ml-17-fl-oz store_origin: ID region: Indonesia --- # Phosphate & nitrate free formula 50,000 mg/L potassium concentration 500 mL liquid volume Flourish Potassium 500 mL / 17 fl. oz. **Brand:** seachem **Price:** Rp770884 **Availability:** ✅ In Stock ## Summary > 🌿 Unlock your aquarium’s full growth potential with every drop! ## Quick Answers - **What is this?** Flourish Potassium 500 mL / 17 fl. oz. by seachem - **How much does it cost?** Rp770884 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/4156361-flourish-potassium-500-ml-17-fl-oz) ## Best For - seachem enthusiasts ## Why This Product - Trusted seachem brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Aquascaping Pros:** Top-rated by thousands for consistent, reliable results in planted freshwater tanks. - • **Boost Plant Growth Naturally:** High-potassium formula fuels lush, vibrant aquatic plants without harmful phosphates or nitrates. - • **Synergizes with Flourish Line:** Designed to perfectly complement Seachem’s full plant care range and Fluorite substrate for maximum vitality. - • **Clean & Clear Aquarium Guarantee:** No phosphate or nitrate means no unwanted algae bloom—keep your tank pristine and thriving. - • **Precision Dosage for Optimal Health:** Concentrated 50,000 mg/L potassium lets you tailor feeding to your aquarium’s exact needs. ## Overview Seachem Flourish Potassium is a premium 500 mL liquid supplement delivering 50,000 mg/L potassium to support vigorous growth in freshwater planted aquariums. Free from phosphates and nitrates, it prevents nutrient imbalances and algae issues, making it an essential part of the Flourish product line for maintaining healthy, vibrant aquatic plants. ## Description Sachem Flourish Potassium contains 50,000 mg/L of potassium suitable for the natural freshwater aquarium. Potassium is one of several elements that are vitally important to maintaining a vigorous level of growth in a planted aquarium. Potassium can become depleted in a rapidly growing system or when the source water has a low mineral content. In these cases potassium could become the limiting factor to growth. Use Flourish Potassium to prevent potassium depletion and maintain the highest level of growth. Flourish Potassium is an integral component of Sachem's plant products and is recommended for use with the entire Flourish line as well as our Fluorite gravel. Contains no phosphate or nitrate. Review: Great, little goes a long way, effective - I use a little less than half recommended bottle dosage every day of all seachem ferts (rotate days between trace and flourish complete). Also use online co2 calculator and use just below dose of co2 tank from 5 am to 5pm. Then I air stone at night. Slightly underused recommended fish food once or twice a day. I take no days off. 2/3rd water change and vacuum every 10 days. Perfect numbers and very slow minimal acceptable algae growth on walls to be hardly visibly noticeable. I created my own HOB power filter and pre-filter using a number of materials from desertcart sources. I only clean the sponges and not the physical media, squeeze them out in the throw out water that comes out during water change. Aquarium maintenance 101 from a newbie. Use as little substrate as possible to keep plants alive to more easily avoid snails. Clean literally everything before putting into aquarium, better for it to die before going in aquarium than to introduce snails. Scrape the walls of algae at each waterchange. If you get snails, take literally everything out but fish and inverts, and soak it in a low ratio bleach plus water bath for like 20 minutes, this is the only way to kill all pest snails literally. Drain the water to just enough for the fish and inverts to swim and live, then scrub the entire aquarium with a scraper and take out literally anything you can see. Scrape again 3 times. Wipe it all down and make sure all there is you can see is the fish and inverts and clear water. Then wipe again. Add plenty of cycling bacteria from multiple sources you can find on desertcart including seachem. Refill the aquarium with the bleach soaked plants decorations subtrate and filter medias. MAKE SURE YOU SOAK IN PLENTY OF DECHLORINATOR AND WATER FOR 20 MINUTES first. None of your plants should die off completely but they will lose and have killed a good amount of their leaves and roots but they should survive and regrow if you fert and change new water and quick cycle with added bacteria I truly hope this helps. My first year with a fully stocked nano tank has been a lot of time reading and experimenting. The pest snail battle was epic but I've been free for 6 months completely. I win. Oh and didn't lose a fish or invert and plants are beyond original growth. This is with having done zero quarantining or adapting at any point. I also cycled from day one, no precycling. Use a 24 hour light with cycling phases and full K spectrum for plants. It is way easier and effective and worth the minor price increase over standard lights. And it is fun Also add Indian leaves and a UV filter Filter floss = crystal clear water. Chemical filtration is entirely unnecessary Have had no issues and made zero adjustments in six months everything has been clear and clean, green growth strong, living things have thrived. Electric heater w built in temperature control at 82 degrees for tropical fish and plants Review: Potassium - Works as intended. Keeps plants happy ## Features - Potassium supplement - For planted aquariums - Contains no phosphate or nitrate ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002APILO | | Allergen Information | Yam Free | | Best Sellers Rank | #10,769 in Pet Supplies ( See Top 100 in Pet Supplies ) #74 in Aquarium Water Treatments | | Brand | Seachem | | Brand Name | Seachem | | Customer Reviews | 4.8 out of 5 stars 3,112 Reviews | | Global Trade Identification Number | 00000116046305 | | Included Components | Seachem Flourish Potassium 500ml | | Item Form | Liquid | | Item Type Name | Seachem Flourish Potassium 500ml | | Item Weight | 265 g | | Liquid Volume | 500 ml | | Manufacturer | Seachem Laboratories, Inc. | | Manufacturer Part Number | 463 | | Model Number | 463 | | Number of Items | 1 | | Pet Type | Fish | | Target Species | Aquatic plants | | UPC | 000116046305 | | Unit Count | 1 Count | | Warranty Description | Warranty | ## Product Details - **Brand:** Seachem - **Item Form:** Liquid - **Item Weight:** 265 g - **Liquid Volume:** 500 ml - **Unit Count:** 1 Count ## Images ![Flourish Potassium 500 mL / 17 fl. oz. - Image 1](https://m.media-amazon.com/images/I/51tnZl9nI-L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great, little goes a long way, effective *by P***O on July 20, 2016* I use a little less than half recommended bottle dosage every day of all seachem ferts (rotate days between trace and flourish complete). Also use online co2 calculator and use just below dose of co2 tank from 5 am to 5pm. Then I air stone at night. Slightly underused recommended fish food once or twice a day. I take no days off. 2/3rd water change and vacuum every 10 days. Perfect numbers and very slow minimal acceptable algae growth on walls to be hardly visibly noticeable. I created my own HOB power filter and pre-filter using a number of materials from amazon sources. I only clean the sponges and not the physical media, squeeze them out in the throw out water that comes out during water change. Aquarium maintenance 101 from a newbie. Use as little substrate as possible to keep plants alive to more easily avoid snails. Clean literally everything before putting into aquarium, better for it to die before going in aquarium than to introduce snails. Scrape the walls of algae at each waterchange. If you get snails, take literally everything out but fish and inverts, and soak it in a low ratio bleach plus water bath for like 20 minutes, this is the only way to kill all pest snails literally. Drain the water to just enough for the fish and inverts to swim and live, then scrub the entire aquarium with a scraper and take out literally anything you can see. Scrape again 3 times. Wipe it all down and make sure all there is you can see is the fish and inverts and clear water. Then wipe again. Add plenty of cycling bacteria from multiple sources you can find on amazon including seachem. Refill the aquarium with the bleach soaked plants decorations subtrate and filter medias. MAKE SURE YOU SOAK IN PLENTY OF DECHLORINATOR AND WATER FOR 20 MINUTES first. None of your plants should die off completely but they will lose and have killed a good amount of their leaves and roots but they should survive and regrow if you fert and change new water and quick cycle with added bacteria I truly hope this helps. My first year with a fully stocked nano tank has been a lot of time reading and experimenting. The pest snail battle was epic but I've been free for 6 months completely. I win. Oh and didn't lose a fish or invert and plants are beyond original growth. This is with having done zero quarantining or adapting at any point. I also cycled from day one, no precycling. Use a 24 hour light with cycling phases and full K spectrum for plants. It is way easier and effective and worth the minor price increase over standard lights. And it is fun Also add Indian leaves and a UV filter Filter floss = crystal clear water. Chemical filtration is entirely unnecessary Have had no issues and made zero adjustments in six months everything has been clear and clean, green growth strong, living things have thrived. Electric heater w built in temperature control at 82 degrees for tropical fish and plants ### ⭐⭐⭐⭐⭐ Potassium *by S***S on August 22, 2026* Works as intended. Keeps plants happy ### ⭐⭐⭐⭐⭐ Works great! Stopped the holes in my leaves! *by C***G on May 18, 2026* This was exactly what I needed to stop my plants from getting tiny holes in their leaves. Everything is strong & healthy now. Very happy. ## Frequently Bought Together - Seachem Flourish Potassium 500ml - Seachem Flourish Freshwater Plant Supplement 500 ml - Seachem Flourish Iron 500ml --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.id/products/4156361-flourish-potassium-500-ml-17-fl-oz](https://www.desertcart.id/products/4156361-flourish-potassium-500-ml-17-fl-oz) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-09-29*