Capped with some small river pebbles ... I started it the first time about 9 months ago so alot of that rock has kinda sunk in, I love a natural look it was fine the whole time but anytime you move something it's a cloudy mess for a while. Im gonna have my first try at paintball co2 in this one.
Looks a bit overgrown....which makes it appear more natural. I really like it! Are you getting used to the pressurized CO2 yet? Do you do any dosing in the water column, or are you just relying on the MTS in this system?