It is depends on how thick or how tall you want to grow it. If you want to grow like those in Amano tank. 6inch thick. Of coz ADA bulb/tube is the best choice. Because it is the only bulb/tube came with 8000Kelvin. The rest of the lighting we can get from lfs or lighting shop are 4700Kelvin, 6500Kelvin or 10,000Kelvin, 14,000Kelvin or 20000Kelvin. Plants growing well in 8000Kelvin only.

But you can use those 6500Kelvin light tube/bulb to achive this result. Just that...you need quite a lot.

If you want to grow it tall..like what we called it as glosso tower. (Mean it is growing upwards) Those low lighting will give you this result easily.

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