🌿 Bring the Father Fish method to small and mid-size tanks with Aqua Preta Complete Soil – Medium, portioned for 20 Long–35 gallon aquariums. This bag includes the Father Fish Supplement and creates a balanced, microbially active base that feeds roots for years—no bottled fertilizers, no CO2.
Why you'll love it
- ✅ Aqua Preta advantage—natural, long-term fertility inspired by Amazon black soils
- ✅ Complete base—soil + supplement for a self-sustaining root zone
- ✅ Sized right for 20–35 gal tanks (20 Long footprint and up)
- ✅ Safe for fish, shrimp, snails, and plants
- ✅ Low-tech friendly—stable, deep-substrate foundations
How to use
- Spread about 1 inch of soil across the tank bottom.
- Cap with ~2 inches of pool filter sand (do not rinse the soil).
- Plant heavily on day one—stems, swords, crypts; mount rhizomes (Anubias) on wood/rock.
- Fill slowly, run a sponge filter, and avoid disturbing the cap.
Tips: For tanks slightly larger than 35 gal, add a cup of plain peat or potting soil if coverage is under 1 inch and mix well. For very small tanks, use less than 1 inch of soil.
What's included
- • Aqua Preta Complete Soil (medium bag)
- • Father Fish Supplement pre-included / matched for this size
Father Fish tip
A precise 1 inch soil base capped with 2 inches sand is the sweet spot—no chemicals, no CO2, just biology doing the work.
👉 Build your base with the full Aqua Preta soils, then plant heavy from the Stem Plants Collection and add easy accents from the Anubias Collection. New to natural tanks? Try a done-for-you Plant Package.
Pairs well with
