Tank Lighting
Hello Round...
Lighting is very easy for low light plants, here's all you need for your 20 G: A 6500 K, T8 bulb is best. It mimics natural daylight at 5500 K. You won't need more than 15 watts, because a standard 20 G tank is long and not very tall, so the plants will be fairly close to the light source.
Java fern can be attached to driftwood or lava rock. Anything that's naturally porous. Attach the plant with dark sewing thread. The driftwood can be weighed down with rocks or just floated.
Anubias will do well just sitting on the bottom of the tank, with some rocks around it. You can also attach this plant to a piece of lava rock.
Neither of these plants should be planted in the gravel.
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