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Phat Fundamental Fertiliser

Phat Fundamental Fertiliser

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Fast and cheap

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Over 100,000 happy aquariums

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Dose in planted tanks

Phat Fundamental Fertiliser
Regular price $9.95
Regular price Sale price $9.95
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Details

  • Aquarium-safe formula for all freshwater plants
  • Potassium and trace elements to nourish slow to moderate growers
  • Inert and stable—won’t affect water pH or hardness Great for low-tech planted aquariums
  • Works with or without CO₂ injection 💧

How to Use: Dose 5ml per 100L once or twice weekly Adjust based on plant density and growth rate

Safe for all fish, shrimp, and aquatic invertebrates 📦

Specs Nutrients: Potassium + micronutrients for low-energy planted tanks

SHIPPING INFO

Fast and free shipping within the U.S. on orders over $49!

Worldwide free shipping on orders over $199!

FAQ

Q: What is PHAT Fundamental Fertiliser used for?

A: PHAT Fundamental Fertiliser is designed to provide essential nutrients that support healthy aquatic plant growth, improved colouration, and overall tank balance.

Q: What makes this a “fundamental” fertiliser?

A: It focuses on delivering core nutrients that plants need consistently, making it an ideal base fertiliser for maintaining stable growth in planted aquariums.

Q: Is it suitable for all planted aquariums?

A: Yes, it can be used in a wide range of setups, from beginner low-tech tanks to advanced high-tech aquascapes.

Q: Do I need CO2 to use this fertiliser?

A: No, it works in both CO2 and non-CO2 tanks, though results are typically enhanced when paired with CO2 injection and strong lighting.

Q: How often should I dose it?

A: Dosing depends on tank size, plant density, and lighting. Follow the recommended instructions and adjust based on plant growth and tank response.

Q: Will it improve plant colour?

A: Yes, consistent dosing helps bring out richer greens and can support vibrant colours when combined with proper lighting and conditions.

Q: Can I overdose this fertiliser?

A: Yes, excessive dosing may lead to algae or nutrient imbalance. It’s best to start with recommended levels and increase gradually if needed.

Q: Is it safe for fish and shrimp?

A: Yes, when used as directed it is safe for aquarium livestock, including sensitive species like shrimp.

Q: Can beginners use this product?

A: Absolutely. Its simple dosing makes it a great entry point for hobbyists new to planted aquariums.

Q: How long before I see results?

A: Many aquarists notice healthier plant growth and improved appearance within a few weeks of consistent use.

Q: Does this replace root tabs or substrate nutrients?

A: It complements them by supplying nutrients through the water column, working alongside substrate-based feeding.

Q: Can I use it with other fertilisers?

A: Yes, it can be combined with specialised supplements depending on your tank’s needs and goals.


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  • Fast and cheap

  • Over 100,000 happy aquariums

  • Dose in planted tanks

  • 24/7 customer support

PHAT FUNDAMENTAL PLANT FERTILISER

Effortless Nutrition. Everyday Growth. All Colour.

For planted tank keepers who want simplicity without sacrificing results—PHAT FUNDAMENTAL is your go-to, all-in-one aquarium plant fertiliser. Designed for low to medium light tanks, non-CO₂ or lightly injected setups, and slower-growing aquatic plants, this formula fuels your scape without overcomplicating your routine.

With a clean dose of potassium and essential micronutrients, PHAT FUNDAMENTAL supports healthy leaf development, vibrant color, and stable long-term growth. Whether you're running a jungle-style layout, a beginner-friendly nano tank, or just want to keep things low-key—this is the perfect foundational fertiliser for your aquatic plants.