Hi jnsm,
It looks like you have Java ferns in the back left corner and Anubias in the back right corner. I've seen the plant on the driftwood in LFS' but not sure what they are or if they're even aquatic plants. As for the Java ferns and anubias, they should not not be planted deep in the substrate. The fleshy rhizome where the leaves sprout from should be above the substrate. As they are both slow growing plants, I think you can do without the complication of CO2 and ferts, especially at such a small scale. Does the iq5 come with a filter? Also, what fauna will you be adding? Or is it just the guppies in the pic?
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