The "Multi System" / Rubble Zones
This is a quick topic on the "Multi System", but an important one. Instead of always fussing with glue, rubber bands, and toothpicks... I've purchased or smashed up live rock rubble. The Figures 1 and 2 show different low current rubble zones. I can make a cutting and just drop 'er in and let it attach naturally. In addition, the benefit of mega critter habitat and a natural appearance are true bonuses!
Figure 1

Figure 2