Yeah, disposables…not the most cost effective approach but it’s such a small aquarium that I didn’t want to invest in a large CO2 tank and regulator with a solenoid…once these run out I’ll get a larger bottle that’s still somewhat smallish, lol. Space is also an issue in its location. I’ll likely build another larger tank with more bells and whistles…as long as I can take out a second mortgage on my house.
I rescaped it a bit, swapped out the larger stones up front for smaller ones. Once the new background plants establish, I’ll trim them back and plant the trimmings for more density.