Pearl Danio water parameters & overlap

Use this freshwater pH, GH, and KH overlap tool to avoid aquarium temperature mismatch and water hardness conflicts before choosing community tank mates.

Temperature68-78F
pH6.5-7.5
GH5-18 dGH
KH2-10 dKH

Stability notes

Use these ranges as a compatibility window, not as a reason to chase an exact pH number. Stable temperature, mature filtration, and gradual acclimation are safer than frequent chemical swings.

Parameter-compatible livestock

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