MasterLine Nitrate

4.4(28)

$100.00 away from free WA delivery Free delivery over $100 in WA ($150 elsewhere in Australia).

Free pickup in KenwickOpen Tue to Sat, 12pm to 6pm

Complete the scape

Picked by our team to go with this.

About this product

MasterLine Nitrate — Targeted NO3 & Potassium Fertilizer

Keep nitrogen levels exactly where your plants need them. MasterLine Nitrate is a targeted liquid fertilizer combining Nitrate (NO3) and Potassium (K), formulated to address nitrogen deficiencies that commonly occur in heavily planted tanks or through natural denitrification.

Key Features

Nitrate (NO3) + Potassium (K) — two essential macronutrients for vigorous plant growth
Corrects nitrogen deficiency — addresses pale, yellowing leaves and stunted growth
Promotes faster growth — reliable nitrogen source accelerates healthy plant development
Indirectly prevents algae — thriving plants outcompete algae for available nutrients
500ml — concentrated for long-lasting precision dosing

Whether you're running EI, PPS-Pro, or a custom regime, MasterLine Nitrate gives you clean, isolated nitrogen control for a balanced, thriving aquascape.

Delivery and returns

Free delivery over $100 in WA and $150 elsewhere in Australia. Free pickup from our Kenwick store, Tue to Sat, 12pm to 6pm.

Returns policy

5 stars: 16 (57%)
4 stars: 8 (29%)
3 stars: 4 (14%)
2 stars: 0 (0%)
1 star: 0 (0%)

Recommend

Easy dosing, great growth, no algae.

Pro level

The Masterline system has taken my tank to the next level. Clean, healthy, vibrant growth.

Excellent

Plants greened up within days and growth has been strong ever since. Will repurchase.

Lush growth

Within a fortnight my carpet started spreading properly. Clearly providing what my plants were missing.

Solid choice

Reliable results and a generous bottle. My planted tank is thriving.

Value for money

Large bottle that lasts. Effective and easy to dose daily.

Strong growth

Had to trim twice as often since using this. Plants are clearly loving it.

Great for planted tanks

Balanced nutrients that my plants clearly respond to. No algae problems when following the recommended dose.

Highly recommend

Great bang for buck. A bottle lasts ages and the results speak for themselves. My plants are vibrant and healthy.

Top fert

Does exactly what it promises.

Quality fert

You can tell it's a premium product. My plants have never looked better since switching.

Pleased

Easy to dose and my plants are responding well.

Good product

Steady improvement in plant health. No staining or cloudiness in the water.

Easy to use

Simple dosing and good value. My plants are thriving and pearling more than ever.

Part of my routine

Dose this with my other Masterline bottles and the results are excellent. Well worth it.

Love it

Best fert range I've used so far.

Effective

Clear improvement in plant vigour and colour. Will buy again.

Great results fast

Saw a difference in under a week. Highly recommend for any planted setup.

Good value fert

Affordable and effective. My whole tank looks healthier since I started dosing.

Fantastic

My scape has filled in beautifully since using this.

Reliable

Consistent growth every time. A staple in my dosing routine now.

Does the trick

Healthy growth and no downsides. Good value too.

Works well

Solid all rounder fert.

Plants love it

Noticeable difference in growth within a couple of weeks. My stems are greener and fuller. Easy to dose with the cap measurements.

Great fertiliser

Does the job nicely. No algae issues when dosed correctly.

Great improvement

Plants perked up quickly and are now growing well. Simple to add to my routine.

Happy with results

Easy to use and effective. My stems are growing noticeably faster.

My go to

Been using the Masterline range for months now. Consistent results and my tank has never looked better.