Fritz is a well-known hobby business. Unfortunately the product didn't fit my 10 gallons (we have hard water near Washington). An 80% water change, reducing the fish population, feeding less, cleaning windows (inside and outside) and replacing the HOB filter sponge worked wonders for me.
EcoBio-Block Stone: Natural Water Clarifier & Odor Remover for Aquariums (Medium) - Treats 15-40 Gallons Efficiently
10 Review
ACCU-CLEAR Water Clarifier for Freshwater Aquariums - Quickly Clears Cloudy Water, Ideal for Weekly Use
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Tetra AquaSafe tap water treatment agent, 5 l
11 Review
π Two Little Fishies Marine Snow ATLMSPD4, 16.9 oz
10 Review
Mini pump Xiaomi Mijia Electric Pump 1S, plastic, black
55 Review
Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
49 Review
Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review
Efficient 2-In-1 Magnetic Fish Tank Cleaner With Non-Slip Design And Scratch-Free Blades
37 Review