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{"id":8308554203336,"title":"Brightwell Aquatics Florin pH- - Water Conditioner to Lower pH Level in Freshwater, Planted, and Marine Saltwater Aquariums, 500-ml","handle":"brightwell-aquatics-florin-ph-water-conditioner-to-lower-ph-level-in-freshwater-planted-and-marine-saltwater-aquariums-500-ml","description":"\u003ch3\u003eBrightwell Aquatics Florin pH- - Water Conditioner to Lower pH Level in Freshwater, Planted, and Marine Saltwater Aquariums, 500-ml\u003c\/h3\u003e\r\n\u003cp id=\"b\"\u003eWater chemistry requirements of many freshwater fish and motile invertebrate\r\nspecies of interest dictate that the pH of the aquarium water be maintained\r\nbelow 7.0 (e.g. acidic); this is particularly true of aquatic organisms\r\nendemic to forested regions with mineral-deficient waters, exemplified by many\r\nstreams and rivers in South and Central America, West Africa, Southeast Asia,\r\nand parts of Australasia. The challenge facing many aquarists wishing to\r\nmaintain these species in captivity pertains to adjusting pH to the proper\r\nrange when the water being employed for water changes is rich in dissolved\r\nminerals (particularly those that increase alkalinity, such as calcium\r\ncarbonate) and\/or when a reactive aquarium substrate, such as dolomite or\r\ncalcite, is employed. The best first step is to use only purified water,\r\nreconstituted with a suitable remineralizing salt to the desired TDS, when\r\nperforming water changes (non-remineralized purified water should be used when\r\nreplacing evaporation); additionally, non-reactive (e.g. inert) bottom\r\nsubstrate should be employed. Having enacted these changes, however, pH may\r\nstill be higher than the desired level. Use of Florin pH- as directed will\r\nresult in a gradual, safe decrease in pH. Changes to pH should always be made\r\nvery gradually to avoid stress of aquarium inhabitants, and a reputable\r\nreference source for water chemistry requirements of the inhabitants should be\r\nreviewed prior to making any pH changes. Alkalinity (carbonate hardness)\r\nshould be monitored and adjusted as necessary. Florin pH- is safe for all\r\nfreshwater aquaria, including those housing plants and motile freshwater\r\ninvertebrates (e.g. shrimp and other crustaceans, snails and other mollusks,\r\netc.).\u003c\/p\u003e \r\n\r\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\r\n \u003cul class=\"a\"\u003e\r\n \u003cli\u003eSafely decreases pH in freshwater, marine and planted aquaria.\u003c\/li\u003e\r\n \u003cli\u003eGradually decreases alkalinity (\"carbonate hardness\") of tap water and aquarium water.\u003c\/li\u003e\r\n \u003cli\u003eContains no phosphate-based buffers; will not contribute phosphate or nitrogen-based nutrients to aquarium water.\u003c\/li\u003e\r\n \u003cli\u003eAge range description: All Life Stages\u003c\/li\u003e\r\n \u003c\/ul\u003e","published_at":"2026-04-04T20:58:37+11:00","created_at":"2026-04-02T17:50:45+11:00","vendor":"Brightwell Aquatics","type":"Aquarium Water Treatments","tags":["pets_selected_Mar2026"],"price":14200,"price_min":14200,"price_max":14200,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":45043171983560,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B00BUFT8ES","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Brightwell Aquatics Florin pH- - Water Conditioner to Lower pH Level in Freshwater, Planted, and Marine Saltwater Aquariums, 500-ml","public_title":null,"options":["Default Title"],"price":14200,"weight":572,"compare_at_price":null,"inventory_management":"shopify","barcode":"810086014835","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/pawsplanetshop.com\/cdn\/shop\/files\/B00BUFT8ES.jpg?v=1775728241","\/\/pawsplanetshop.com\/cdn\/shop\/files\/81KlOzwNfLL.jpg?v=1775112649","\/\/pawsplanetshop.com\/cdn\/shop\/files\/31tQBkXf6eL.jpg?v=1775112648"],"featured_image":"\/\/pawsplanetshop.com\/cdn\/shop\/files\/B00BUFT8ES.jpg?v=1775728241","options":["Title"],"media":[{"alt":"Brightwell Aquatics Florin pH- - Water Conditioner to Lower pH Level in Freshwater, Planted, and Marine Saltwater Aquariums, 500-ml - PawsPlanet Australia","id":30829259096264,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/pawsplanetshop.com\/cdn\/shop\/files\/B00BUFT8ES.jpg?v=1775728241"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/pawsplanetshop.com\/cdn\/shop\/files\/B00BUFT8ES.jpg?v=1775728241","width":1000},{"alt":"Brightwell Aquatics Florin pH- - Water Conditioner to Lower pH Level in Freshwater, Planted, and Marine Saltwater Aquariums, 500-ml - PawsPlanet Australia","id":30829259129032,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2560,"width":2560,"src":"\/\/pawsplanetshop.com\/cdn\/shop\/files\/81KlOzwNfLL.jpg?v=1775112649"},"aspect_ratio":1.0,"height":2560,"media_type":"image","src":"\/\/pawsplanetshop.com\/cdn\/shop\/files\/81KlOzwNfLL.jpg?v=1775112649","width":2560},{"alt":"Brightwell Aquatics Florin pH- - Water Conditioner to Lower pH Level in Freshwater, Planted, and Marine Saltwater Aquariums, 500-ml - PawsPlanet Australia","id":30829259161800,"position":3,"preview_image":{"aspect_ratio":0.75,"height":500,"width":375,"src":"\/\/pawsplanetshop.com\/cdn\/shop\/files\/31tQBkXf6eL.jpg?v=1775112648"},"aspect_ratio":0.75,"height":500,"media_type":"image","src":"\/\/pawsplanetshop.com\/cdn\/shop\/files\/31tQBkXf6eL.jpg?v=1775112648","width":375}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eBrightwell Aquatics Florin pH- - Water Conditioner to Lower pH Level in Freshwater, Planted, and Marine Saltwater Aquariums, 500-ml\u003c\/h3\u003e\r\n\u003cp id=\"b\"\u003eWater chemistry requirements of many freshwater fish and motile invertebrate\r\nspecies of interest dictate that the pH of the aquarium water be maintained\r\nbelow 7.0 (e.g. acidic); this is particularly true of aquatic organisms\r\nendemic to forested regions with mineral-deficient waters, exemplified by many\r\nstreams and rivers in South and Central America, West Africa, Southeast Asia,\r\nand parts of Australasia. The challenge facing many aquarists wishing to\r\nmaintain these species in captivity pertains to adjusting pH to the proper\r\nrange when the water being employed for water changes is rich in dissolved\r\nminerals (particularly those that increase alkalinity, such as calcium\r\ncarbonate) and\/or when a reactive aquarium substrate, such as dolomite or\r\ncalcite, is employed. The best first step is to use only purified water,\r\nreconstituted with a suitable remineralizing salt to the desired TDS, when\r\nperforming water changes (non-remineralized purified water should be used when\r\nreplacing evaporation); additionally, non-reactive (e.g. inert) bottom\r\nsubstrate should be employed. Having enacted these changes, however, pH may\r\nstill be higher than the desired level. Use of Florin pH- as directed will\r\nresult in a gradual, safe decrease in pH. Changes to pH should always be made\r\nvery gradually to avoid stress of aquarium inhabitants, and a reputable\r\nreference source for water chemistry requirements of the inhabitants should be\r\nreviewed prior to making any pH changes. Alkalinity (carbonate hardness)\r\nshould be monitored and adjusted as necessary. Florin pH- is safe for all\r\nfreshwater aquaria, including those housing plants and motile freshwater\r\ninvertebrates (e.g. shrimp and other crustaceans, snails and other mollusks,\r\netc.).\u003c\/p\u003e \r\n\r\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\r\n \u003cul class=\"a\"\u003e\r\n \u003cli\u003eSafely decreases pH in freshwater, marine and planted aquaria.\u003c\/li\u003e\r\n \u003cli\u003eGradually decreases alkalinity (\"carbonate hardness\") of tap water and aquarium water.\u003c\/li\u003e\r\n \u003cli\u003eContains no phosphate-based buffers; will not contribute phosphate or nitrogen-based nutrients to aquarium water.\u003c\/li\u003e\r\n \u003cli\u003eAge range description: All Life Stages\u003c\/li\u003e\r\n \u003c\/ul\u003e"}

Brightwell Aquatics Florin pH- - Water Conditioner to Lower pH Level in Freshwater, Planted, and Marine Saltwater Aquariums, 500-ml

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Brightwell Aquatics Florin pH- - Water Conditioner to Lower pH Level in Freshwater, Planted, and Marine Saltwater Aquariums, 500-ml

Water chemistry requirements of many freshwater fish and motile invertebrate species of interest dictate that the pH of the aquarium water be maintained below 7.0 (e.g. acidic); this is particularly true of aquatic organisms endemic to forested regions with mineral-deficient waters, exemplified by many streams and rivers in South and Central America, West Africa, Southeast Asia, and parts of Australasia. The challenge facing many aquarists wishing to maintain these species in captivity pertains to adjusting pH to the proper range when the water being employed for water changes is rich in dissolved minerals (particularly those that increase alkalinity, such as calcium carbonate) and/or when a reactive aquarium substrate, such as dolomite or calcite, is employed. The best first step is to use only purified water, reconstituted with a suitable remineralizing salt to the desired TDS, when performing water changes (non-remineralized purified water should be used when replacing evaporation); additionally, non-reactive (e.g. inert) bottom substrate should be employed. Having enacted these changes, however, pH may still be higher than the desired level. Use of Florin pH- as directed will result in a gradual, safe decrease in pH. Changes to pH should always be made very gradually to avoid stress of aquarium inhabitants, and a reputable reference source for water chemistry requirements of the inhabitants should be reviewed prior to making any pH changes. Alkalinity (carbonate hardness) should be monitored and adjusted as necessary. Florin pH- is safe for all freshwater aquaria, including those housing plants and motile freshwater invertebrates (e.g. shrimp and other crustaceans, snails and other mollusks, etc.).

Product Features

  • Safely decreases pH in freshwater, marine and planted aquaria.
  • Gradually decreases alkalinity ("carbonate hardness") of tap water and aquarium water.
  • Contains no phosphate-based buffers; will not contribute phosphate or nitrogen-based nutrients to aquarium water.
  • Age range description: All Life Stages

Buy with confidence as this product comes with 18 months full local warranty in Australia & New Zealand (unless otherwise stated in the overview).

This product also comes with the benefits of the Warranty. For further details please read our Warranty Guidelines.

You can also purchase 3 Year Extended Care. If you are interested please see our Extended Care Information.