UAS no algae setup since 5 days

[zubair1291]

i have a diy UAS is setup for 5 days but there is no algae on it till now....

465346544655

https://www.dropbox.com/sh/weo6tlxpfha4ube/igC3PU-Cfc

[Pny]

What substrate is that?

[zubair1291]

it's sea sand....

[Chaz D]

I don't understand the logic behind scrubbers on discus tanks. Do a water change and keep your lights dim.

[SantaMonica]

Welcome.

What is your screen material?

[zubair1291]

it's Velcro..

[SantaMonica]

How much bubbles, and how many hours of light?

[zubair1291]

light for 10-12 hours and air pump is on normal condition there is no measure's for it but i can upload a video

[SantaMonica]

Wait 10 days.

[zubair1291]

Thank You...yup waiting for results...buy the way red led will be more efficient?

[Pny]

If you use red LEDs you dont spend energy on wavelengths (colors) that the algae dont need and dont use.

[SantaMonica]

Red 660nm is the most efficient per watt.