Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to care for silver dollar fish [title] Choose the right tank size. [step] One of the biggest factors in a fish's survival and wellbeing is the environment it lives in. Housing your silver dollar fish in a small, cramped tank can be very uncomfortable for your pet, and if you have more than one fish in the tank they may begin to compete for resources.

Ending1: If your tank starts to look like it is full of vermin, you may even be exposing your fish to disease or vegetation. [title] Acquire the correct filtration system. Ending2: Make sure you have enough tank space to accommodate two species of fish and one adult fish each. [substeps] For one large tank, make sure it has excellent lighting; at least, a lot of lights that you can change every two hours. Ending3: [substeps] Some breeders recommend having a tank that holds at least 50 gallons of water to ensure adequate space. If you're considering housing a school of fish or breeding your own silver dollar fish you will need an even larger tank. Ending4: [substeps] Check with local fish stores for specific requirements. Most fish owners must bring their tank to their local store to get plenty of space.

Answer format: ending1/ending2/ending3/ending4