Decorations and fish
After you have installed your filtration system and lighting, it is time to add decorations and fish. Decorations provide hiding places for your fish while also improving the tank’s aesthetics, so you want to choose items that look good and are safe for your fish.
Before making any purchases, research the type of fish you want to keep. Make sure that they are compatible with one another and that there is a balance of active swimmers, bottom dwellers, and other inhabitants.