I've been lurking here for a while. Here's my most recent project. 29 gallon brackish tank with dual Marineland Penguin 150s and a Current USA Freshwater LED+ light. I used aragonite for the substrate and have a mixture of holey rock and plain white base rock. Livestock is 2 Figure 8 puffers, 2 Marbled Mollies, and 3 bumblebee gobies.