Water guide
Cloudy Fish Tank Water: White, Green, or Yellow — Causes and Fixes
Last updated: May 2026
Match the colour
- Milkiness: Often heterotrophic bacteria after organic surges (bacterial bloom nuances).
- Lime-green water: Phytoplankton bloom — see green water algae guide.
- Tea tint: Tannins from botanicals — typically cosmetic.
Parallel-test ammonia anytime cloudiness shocks new setups.
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