Do I have enough filter power?

You'll be fine with what you have .I have the same exact filter on my planted tank and it does very well and the water is crystal clear.I just had to make a small plexiglass splash guard for the front near the bio wheel because when it was still somewhat new the wheel would spit water up onto my glass cover and onto my light until the wheel matured and started to slow down a bit.By the way I see in your 10 gal. tank pic you have a CO2 system on it.How do you like it, I was debating on getting the same system?