I have been using this product for many years and it works great for my small aquarium. I just fill a 5 gallon bucket with the same temperature as the water in the tank and add a cup. For my large tank I fill it up with python without spilling anything and pour the hooks straight into the faucet and I add api to the tank as water comes in. I found that it took a full minute to fill a 5 gallon bucket, so as long as the water is flowing into the tank I keep track of the timer and add a cup every minute, which is a bit excessive, but is safer then sorry because sometimes extra chlorine is added to the water during water purification. A small downside is that it fogs up the water for about a day, but maybe that's because I add more than I need, but it still does the job, it's cheap and readily available.
ACCU-CLEAR Water Clarifier for Freshwater Aquariums - Quickly Clears Cloudy Water, Ideal for Weekly Use
9 Review
Boyd Enterprises ABE16743 Chemipure 11 74 Ounce
9 Review
12 Count Greenpro Root Tabs Fertilizer Tablets: Ideal For Aquariums, Ponds & Water Gardens!
26 Review
Omega-3 caps, 1000 mg, 100 pcs, 1 pack, neutral
34 Review
Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
49 Review
Mini pump Xiaomi Mijia Electric Pump 1S, plastic, black
55 Review
π U-BCOO Aquarium Gravel Cleaner Fish Tank: Manual Siphon for Efficient Filter Gravel Cleaning and Water Change in Tanks
22 Review
Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review