Home » Tropical Fish Tank » How to clean a tropical fish tank » Cleaning A Tropical Fish Tank How to clean a tropical fish tank Cleaning A Tropical Fish Tank Freshwater-TropicalFish.com December 27, 2015 119 Views 0 A brief time lapse video of myself cleaning my 125 Litre tropical neighborhood fish tank. The entire procedure takes around an hour, which I handled to reduce to 4 1/2 minutes. +15-4