My DIY ATS is doing very well growing GHA amongst other algae at a fast rate. The screen which is just under A4 size is lit from both sides with cheap 30w Hydrophonics LED units. for 20 hours a day. My penultimate harvest was 120g of GHA after leaving it 2 weeks since the harvest before it. The one I have just carried out with 7 days of growth has 90g of GHA.
Here are a few pic's.
And todays.
Here are a few pic's.
And todays.
