what do you think about this diy algae turf scrubber ?

[slirp87]

what do you think about it? any suggestions?
it uses two of this 2w led light white 6500k (i suppose) 24h/7 days: https://it.aliexpress.com/item/32890769532.html
the canvas is 18cm x 10cm and i feed 1/2 cube mysis shrimp per day.
water pump: 400l/h
my tank has 100 liters capacity.
it is in function from yesterday.

[SantaMonica]

Welcome from Italy.

Do you have 1 or 2 drains? If one drain clogs, the second drain (higher up) will then be used.

[slirp87]

Welcome from Italy.

Do you have 1 or 2 drains? If one drain clogs, the second drain (higher up) will then be used.

Thanks! I have 3 drains , i was scared of clogging haha
I hope that two led strips of 2w per side at a distanze of 3cm from the canvas Could be sufficient

[SantaMonica]

Those LED strips are probably 1 watt of light, and 1 watt of power supply. So they are lower power than you need but since you have them installed just use them and see what happens. You will probably get some growth in the middle of the screen.

[slirp87]

Those LED strips are probably 1 watt of light, and 1 watt of power supply. So they are lower power than you need but since you have them installed just use them and see what happens. You will probably get some growth in the middle of the screen.

actually, i think they are 2,4w each one --> 480ma , 5v = 2,4w , each one powered with 5v 1A power supply.

[slirp87]

little update

[SantaMonica]

Yes but half the wattage will go to heating up the power supply, which is why it gets warm.

[slirp87]

you are right ! so every time we read a declared wattage , the real one is an half of that ?
update:

[SantaMonica]

Yes for the small lights the wasted heat is about 50 percent. For larger lights the wasted heat is about 20 percent.

[slirp87]

day 11 - time to clean the mesh ? - phospathes 0,03 - nitrates 20