Add a black or blue background. Limit your light to create shadows. Maybe put the rocks on one side with a piece if driftwood. I tend to create focal points with my decor. Like large rocks and driftwood on one side/both ends or the center. In a fan of more dimly lit tanks. I know my fish appreciate it as they hang out in shadows and cruise through the kit areas. Given the choice mist my larger cichlids choose the shadows. I also prefer natural looking tanks. I try to keep ricks that are very similar and try to not make them look stacked by man.
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