Dallas North Aquarium has served North Texas aquarium keepers for over 3 decades. Located in Carrollton, the store carries freshwater fish, saltwater livestock, corals, plants, aquariums, equipment, food, and water-care products. Some customers arrive with a detailed stocking plan. Others walk in holding a jar of cloudy tank water and hoping for answers. Both are welcome.

Discus do require more planning than many common freshwater fish. They need warm, clean water, a mature aquarium, compatible tankmates, and an owner willing to follow a consistent maintenance routine. What they do not need is constant panic, endless chemical adjustments, or a laboratory disguised as a living room.

Why a 75-Gallon Aquarium Is the Best All-Around Tank for Freshwater and Saltwater Hobbyists: Ask a group of aquarium hobbyists what the "perfect" tank size is, and you're almost guaranteed to hear a different answer from everyone in the room. Some enjoy the challenge of nano aquariums, while others believe that bigger is always better. But when it comes to finding a balance between stability, flexibility, cost, and long-term enjoyment, one size consistently stands out: the 75