Bought for my "always dirty" tank. I changed the filter, partially changed the water with the addition of various healing liquids and charcoal fillers, it only helped for a few days, then the problem came back. After all the experiments, I bought them these bacteria and little white balls "house of bacteria". The problem seems to be gone for good - the water is always clean, even though I somehow forgot to clean the filter over the weekend. Recommend.
Tetra AquaSafe tap water treatment agent, 5 l
11 Review
ACCU-CLEAR Water Clarifier for Freshwater Aquariums - Quickly Clears Cloudy Water, Ideal for Weekly Use
9 Review
EcoBio-Block Stone: Natural Water Clarifier & Odor Remover for Aquariums (Medium) - Treats 15-40 Gallons Efficiently
10 Review
12 Count Greenpro Root Tabs Fertilizer Tablets: Ideal For Aquariums, Ponds & Water Gardens!
26 Review
Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review
π U-BCOO Aquarium Gravel Cleaner Fish Tank: Manual Siphon for Efficient Filter Gravel Cleaning and Water Change in Tanks
22 Review
Efficient 2-In-1 Magnetic Fish Tank Cleaner With Non-Slip Design And Scratch-Free Blades
37 Review
Mini pump Xiaomi Mijia Electric Pump 1S, plastic, black
55 Review