" /> TanninLab: Aquascaping, Betta & Blackwater Guides

Planted. Betta. Shrimp. Blackwater.

Honest guides built on real tank tests.

Betta tank setup guide
New
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. We tested five starter kits across three months to find what works.

  • Minimum tank size: 5 gallons (not 1)
  • Filter flow: why gentle matters
  • Heater placement and temperature stability
  • Plant selection for low-light betta tanks
Read the guide
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 test the sources too

Explore Botanicals

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