Neons seem so hit or miss. I've never had a single neon die when I got them home. They've all lasted years, and that's coming from a big box store! If your numbers keep dropping, you could start to add cardinal tetras. I'm thinking about doing that as I begin to lose neons.
Looks like a good start. If you are planning to do higher light plants with CO2 and dry fertilizers, definitely get the Satellite Pro Plus now. You'll probably be able to run it at 70% for now, but it will make your plants healthy. That way, as you get more plants, you can crank it up!
This place is a wealth of knowledge. Everything I've learned from here has turned my tank from an amateur-at-best effort to something I'm really proud of. The best part is, you're never really "done"... Always new plants to try, new aquascapes, and different fish options.
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