So I bought a CPR bakpak for my nano. Funny how things come full circle, this was my first skimmer when I started in the hobby. After having a Euroreef for several years its hard to watch it struggle to produce foam from the pathetic amount of bubbles it is producing

So I'm going to do the lame mod I've found which involves basically making more bubbles with an airstone and airpump (woo high tech).
Anyone got any recommendations? Do they still make those coralife wooden airstones or is there something better out there? Any other mods I should look into?