It does have tannins, but it doesn't make your water "dark". I feel like the label should say "Tannin Water" instead of the misleading "Dark Water". Your other products are amazing so I'm not sure what happened here.
Omega-3 caps, 1000 mg, 100 pcs, 1 pack, neutral
34 Review
EcoBio-Block Stone: Natural Water Clarifier & Odor Remover for Aquariums (Medium) - Treats 15-40 Gallons Efficiently
10 Review
π Two Little Fishies Marine Snow ATLMSPD4, 16.9 oz
10 Review
Tetra AquaSafe tap water treatment agent, 5 l
11 Review
Efficient 2-In-1 Magnetic Fish Tank Cleaner With Non-Slip Design And Scratch-Free Blades
37 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
π U-BCOO Aquarium Gravel Cleaner Fish Tank: Manual Siphon for Efficient Filter Gravel Cleaning and Water Change in Tanks
22 Review