Planted. Betta. Shrimp. Blackwater.

Honest guides built on specs, labels and published sources.

Betta tank setup guide
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Nano tank
Filter and heater
Plant layout

Featured Guide

Betta Fish Tank Setup: The Honest Beginner Guide

A complete, no-nonsense walkthrough: tank size, filtration, heating, planting, and the mistakes that actually kill bettas, with starter kits compared on their stated specs.

  • Minimum tank size: 5 gallons (not 1)
  • Filter flow: why gentle matters
  • Heater placement and temperature stability
  • Plant selection for low-light betta tanks
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Blackwater aquarium

Our Signature POV

Botanicals & Blackwater

Tannins from catappa leaves and alder cones soften water and support betta health. Our dosing guides show exactly how to build a safe blackwater tank without crashing parameters. This is what sets TanninLab apart.

  • Dosing guides

    Exact measurements per gallon

  • Botanical safety checklist

    What to prep before adding

  • pH / tannin tracking

    Monitor without guessing

  • Supplier comparisons

    We compare the sources too

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