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Bright enough?

Bright enough?

October 28, 2020 2 min read

The most deceptive thing about light is that it can appear bright to the human eye but not actually be strong enough to grow plants. This is a function of how our eyes perceive different wavelengths, vis a vis the Photosynthetically Active Radiation (PAR) that plants use for photosynthesis.
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Fine Tuning Light Spectrum

Fine Tuning Light Spectrum

September 04, 2020 1 min read

So, you have got the right light spectrum for your planted tanks. How can you boost plant colours further with your T5s or LEDs? Read on to find out more.
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Is 6500K ideal for planted tanks?

Is 6500K ideal for planted tanks?

August 20, 2020 2 min read

There is a widespread belief that 6500K is the optimal value for photosynthesis in planted tank. Is this true?

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The best LED units for planted tanks in 2020

The best LED units for planted tanks in 2020

August 02, 2020 4 min read

While LEDs look fantastically sleek and are growing in popularity, the majority do not bring out the best coloration in plants. The ones featured here are what we consider the best available current options.
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T5 vs LED, which is better?

T5 vs LED, which is better?

July 23, 2020 3 min read

We review the ongoing debate among freshwater aquarists on the relative merits of LEDs vs fluorescent T5 tubes.
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Dispersion, Angles & Spread of light units

Dispersion, Angles & Spread of light units

September 23, 2019 3 min read

How does dispersion impact light strength? What are the advantages of a wider light array? When does fixture spread matter?
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Does using more blue light give more compact plants ?

Does using more blue light give more compact plants ?

September 23, 2019 2 min read

Blue light suppresses inter-nodal stem distance in land plants, does this apply to aquatics?
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Which part of the light spectrum is used for photosynthesis?

Which part of the light spectrum is used for photosynthesis?

September 23, 2019 5 min read

A deeper exploration into the relationship between light spectrum and photosynthesis; and the difference in absorption vs action spectrum.
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6500K vs 2700K; what does the kelvin number actually mean?

6500K vs 2700K; what does the kelvin number actually mean?

September 20, 2019 5 min read

A deeper discourse on the term K rating, its applications and its impact on planted aquariums.
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How to read PAR tables

How to read PAR tables

September 16, 2019 3 min read

What exactly is Photosynthetically Active Radiation (PAR)? How do I make sense of PAR tables?
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Is Colour Rendering Index (CRI) important for planted tanks?

Is Colour Rendering Index (CRI) important for planted tanks?

July 23, 2019 3 min read

How much does 'the 'colour rendering index', or CRI, matters when it comes to choosing between lights / bulbs for your planted tank?

 

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Do Green plants reflect green light? Is green light useless for photosynthesis?

Do Green plants reflect green light? Is green light useless for photosynthesis?

July 23, 2019 2 min read

Why are leaves green? Does green plants need green light? There is a widespread belief that plants do not use green light for photosynthesis.​ An insight research paper from the University of Tokyo suggests otherwise. Read on to find out more.
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