I have been using leds on my 72 gallon and have been very pleased with them so far. Within the 6 weeks of first planting this tank I have what I feel is good growth on my plants, tank is low tech with dosing of excel 5ml less than recommended dosage) every other day. I am also using a good amount of floating plants to diffuse the light into the tank. So far I have had no issues with algae. The fixture that I am using us a finnex fugeray.
Here is a picture from when the tank was first planted
Here is a picture I took this morning
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