Loose Aqua Preta Complete Soil in a metal scoop close up
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Aqua Preta Complete Soil ingredients label

🌱 Aqua Preta Complete Soil Large - For 40-75 Gallon Aquariums | Natural Substrate System

Regular price$89.95
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🌱 Build a thriving, low-tech ecosystem with Aqua Preta Complete Soil – Large, portioned for 40–75 gallon aquariums. Each 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

  • ✅ Complete natural base—soil + supplement for a self-sustaining root zone
  • ✅ Sized for bigger tanks (40–75 gal)
  • ✅ Healthy plants & fish—stable water chemistry without chemicals
  • ✅ Safe for fish, shrimp, snails, and plants
  • ✅ Low-tech friendly—deep-substrate foundations that last

How to use

  1. Spread about 1 inch of soil across the tank bottom.
  2. Cap with ~2 inches of pool filter sand (do not rinse the soil).
  3. Plant heavily on day one—stems, swords, crypts; mount rhizomes (Anubias) on wood/rock.
  4. Fill slowly, run a sponge filter, and avoid disturbing the cap.

Sizing tips: For tanks larger than 75 gal, use two Large bags or one Large + one Small to maintain a full 1-inch base. If coverage is a little shy of 1 inch, you can mix in a cup of plain peat or potting soil and blend well.

What's included

  • • Aqua Preta Complete Soil (large bag)
  • Father Fish Supplement pre-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

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Customer Reviews

Based on 20 reviews
95%
(19)
5%
(1)
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K
Keith Childress
Rebuttal review

Want to update my previous review about the aqua soil that I hadn’t received yet Father Fish reached out to me and apologize about the delay. Refunded me my money and ship me the product for free so I apologize for my one star review because I was in my feelings, but this company went above and beyond on taking care of me will be ordering again from them in the future

J
Jeff
Makes a great base

Makes a great base. Placed mine in mesh bags to lessen chance of disturbance

K
Kevin Axel
Great soil

Great soil been two weeks and already plants are growing at a good pace thank you.

K
Kerri
First time ever doing an all natural

First time ever doing an all natural. I'm super excited Although i do have questions seeing this is my first attempt. I am now watching Father fishes videos.

K
Kelly
Just the right amount to complete to base level of my 55 gallon tank

Just the right amount to complete to base level of my 55 gallon tank. So easy to apply to the aquarium. I am pleased to know that it includes all the elements needed for a successful tank. Have planted many plants and all are surviving and thriving. Thank you Father Fish!