LCA Macro Mix (NPK) Aquarium Plant Fertiliser

Available in store

Description

LCA Macro Mix (NPK) Aquarium Plant Fertiliser

Supply the three major nutrients your aquatic plants need for healthy, vigorous growth: nitrogen, phosphorus and potassium.

Quick Facts

  • Brand: Liverpool Creek Aquariums (LCA)
  • Product: Macro Mix (NPK) liquid fertiliser
  • Nutrients: Nitrogen (N), phosphorus (P) and potassium (K)
  • Suitable for: Freshwater planted aquariums
  • Sizes: 250ml and 500ml
  • Dosing: 1 pump = 2ml according to the manufacturer's guide

Is this for you?

✔️ Perfect if:

  • You want to supply macronutrients to a planted aquarium.
  • You prefer separate control of macro and trace-element fertilisers.
  • You have a densely planted or CO2-injected aquarium with substantial plant demand.

❌ Avoid if:

  • You want a single complete fertiliser with all micronutrients included.
  • Your aquarium does not need extra nitrogen or phosphorus and you cannot monitor nutrient dosing.

Why choose LCA Macro Mix (NPK)?

Aquatic plants use nitrogen, phosphorus and potassium in relatively large amounts. LCA Macro Mix supplies all three in a convenient liquid, and can be used alongside LCA Micro Mix to provide trace nutrients separately. This flexible approach suits planted aquarium keepers who want control over their fertilising routine.

Benefits

  • Provides nitrogen, phosphorus and potassium for plant growth.
  • Supports a consistent macronutrient dosing routine.
  • Pairs with a suitable micronutrient fertiliser.
  • Pump dosing is straightforward to measure.

Dosing made simple

  • Shake well before use.
  • Medium to low light, no injected CO2: 1 pump (2ml) per 100L, 1–2 times weekly, with approximately 30% weekly water change.
  • High light, injected CO2 and dense planting: Up to 3 pumps (6ml) per 100L, three times weekly, with a 50% weekly water change.
  • Maximum: 3 pumps per 100L per dose. Do not overdose.
  • Manufacturer's label analysis at 3 pumps per 100L: nitrate 7.50ppm, phosphate 1.30ppm and potassium 5.27ppm.

These are manufacturer guidelines, not a universal requirement. Adjust to plant demand, livestock, nutrient levels and your water-change routine. Keep out of reach of children.

Pairs perfectly with

  • LCA Micro Mix Premium for complementary trace nutrients.
  • Healthy aquatic plants and consistent aquarium lighting.
  • An appropriate CO2 system for high-demand planted aquariums.
NTA Insight: NPK is only one part of good plant growth. More fertiliser does not automatically mean healthier plants: balance macro nutrients with trace nutrients, light, CO2 and regular maintenance. Begin with the appropriate manufacturer guideline and adjust based on how your aquarium responds.

FAQ

What does NPK stand for?

Nitrogen, phosphorus and potassium, three essential macronutrients used by aquatic plants.

Is Macro Mix a complete all-in-one fertiliser?

No. It supplies the main macronutrients. The manufacturer recommends pairing it with LCA Micro Mix for the complementary micronutrients.

Can I use this in a low-tech aquarium?

Yes. The label provides a lower-frequency routine for medium- to low-light aquariums without injected CO2.

How much does one pump dispense?

According to the manufacturer's dosage label, one pump dispenses 2ml.

Will it prevent algae?

No fertiliser alone prevents algae. Avoid overdosing and keep light, CO2, nutrients and aquarium maintenance in balance.

LCA Macro Mix (NPK) Aquarium Plant Fertiliser

Available in store

Product form
Free pickup in our shop(s)

SKU: LCA-NPK250

📦 Arrival Date: 23 October 2026

2 in stock

$29.95


All prices include GST
Is Online Fish Ordering Right for You?
    • 100% Satisfaction Guaranteed
    • Live Guaranteed to your Home or Office
    • Price Match Available

    Description

    LCA Macro Mix (NPK) Aquarium Plant Fertiliser

    Supply the three major nutrients your aquatic plants need for healthy, vigorous growth: nitrogen, phosphorus and potassium.

    Quick Facts

    • Brand: Liverpool Creek Aquariums (LCA)
    • Product: Macro Mix (NPK) liquid fertiliser
    • Nutrients: Nitrogen (N), phosphorus (P) and potassium (K)
    • Suitable for: Freshwater planted aquariums
    • Sizes: 250ml and 500ml
    • Dosing: 1 pump = 2ml according to the manufacturer's guide

    Is this for you?

    ✔️ Perfect if:

    • You want to supply macronutrients to a planted aquarium.
    • You prefer separate control of macro and trace-element fertilisers.
    • You have a densely planted or CO2-injected aquarium with substantial plant demand.

    ❌ Avoid if:

    • You want a single complete fertiliser with all micronutrients included.
    • Your aquarium does not need extra nitrogen or phosphorus and you cannot monitor nutrient dosing.

    Why choose LCA Macro Mix (NPK)?

    Aquatic plants use nitrogen, phosphorus and potassium in relatively large amounts. LCA Macro Mix supplies all three in a convenient liquid, and can be used alongside LCA Micro Mix to provide trace nutrients separately. This flexible approach suits planted aquarium keepers who want control over their fertilising routine.

    Benefits

    • Provides nitrogen, phosphorus and potassium for plant growth.
    • Supports a consistent macronutrient dosing routine.
    • Pairs with a suitable micronutrient fertiliser.
    • Pump dosing is straightforward to measure.

    Dosing made simple

    • Shake well before use.
    • Medium to low light, no injected CO2: 1 pump (2ml) per 100L, 1–2 times weekly, with approximately 30% weekly water change.
    • High light, injected CO2 and dense planting: Up to 3 pumps (6ml) per 100L, three times weekly, with a 50% weekly water change.
    • Maximum: 3 pumps per 100L per dose. Do not overdose.
    • Manufacturer's label analysis at 3 pumps per 100L: nitrate 7.50ppm, phosphate 1.30ppm and potassium 5.27ppm.

    These are manufacturer guidelines, not a universal requirement. Adjust to plant demand, livestock, nutrient levels and your water-change routine. Keep out of reach of children.

    Pairs perfectly with

    • LCA Micro Mix Premium for complementary trace nutrients.
    • Healthy aquatic plants and consistent aquarium lighting.
    • An appropriate CO2 system for high-demand planted aquariums.
    NTA Insight: NPK is only one part of good plant growth. More fertiliser does not automatically mean healthier plants: balance macro nutrients with trace nutrients, light, CO2 and regular maintenance. Begin with the appropriate manufacturer guideline and adjust based on how your aquarium responds.

    FAQ

    What does NPK stand for?

    Nitrogen, phosphorus and potassium, three essential macronutrients used by aquatic plants.

    Is Macro Mix a complete all-in-one fertiliser?

    No. It supplies the main macronutrients. The manufacturer recommends pairing it with LCA Micro Mix for the complementary micronutrients.

    Can I use this in a low-tech aquarium?

    Yes. The label provides a lower-frequency routine for medium- to low-light aquariums without injected CO2.

    How much does one pump dispense?

    According to the manufacturer's dosage label, one pump dispenses 2ml.

    Will it prevent algae?

    No fertiliser alone prevents algae. Avoid overdosing and keep light, CO2, nutrients and aquarium maintenance in balance.

    Live Arrival & Ordering FAQ

    Why do livestock prices sometimes change?

    Unlike manufactured products, fish and shrimp continue to grow and develop over time. Their value changes as they increase in size, develop colour, or become breeding pairs.

    Our prices are based on the current size, quality and availability of each specimen. While pricing often remains stable for around 3–4 months, it may be updated at any time to reflect these changes.

    We always aim to offer healthy, high-quality livestock at fair and competitive prices.

    Do you offer a live arrival guarantee?

    Yes. All livestock is covered by our Live Arrival Guarantee.

    In the rare event of DOA, please contact us promptly with clear photos of the livestock in the original unopened bag.

    Please review our full DOA and store policies before purchase.

    Can you ship to all states in Australia?

    No. Due to state restrictions, we cannot ship livestock or live plants to WA and TAS.

    What should I check before ordering?

    Before placing an order, make sure:

    • Your tank is fully cycled and stable
    • Your aquarium has enough space for the species
    • Your current livestock are compatible in temperament, size, and requirements
    • Your water parameters, habitat, and temperature suit the species
    • You are not adding too many fish at once
    What should I expect when my fish arrives?

    It is normal for fish, shrimp, or snails to look pale, stressed, or less active after shipping.

    This is temporary. Most livestock will settle and regain colour within a few days.

    How long does it take for fish to settle in?

    Most livestock will take 3–7 days to fully adjust to their new environment.

    Should I feed my fish immediately after arrival?

    No. We recommend waiting 24 hours before feeding to allow them to settle.

    If you already have fish in your tank, feeding them before introducing new arrivals can help reduce stress.

    Why do fish sometimes struggle after being added to a tank?

    In most cases, issues are caused by tank conditions, not shipping.

    • Uncycled or unstable tanks
    • Poor water parameters
    • Overstocking
    • Unsuitable tank mates
    What is Nano Tanks Australia’s main tip for new livestock?

    Most livestock losses happen in immature or unstable tanks, not during shipping.

    If your setup is not fully established, the risk to new arrivals is significantly higher.

    Not sure if this fish is right for your setup?

    If you are unsure whether this species suits your setup, contact us before ordering and we’ll help point you in the right direction.

    Recently viewed products

      © 2026 Nano Tanks Australia, Powered by Shopify

        • American Express
        • Apple Pay
        • Google Pay
        • Mastercard
        • PayPal
        • Shop Pay
        • Visa