You should always include a filter in your goldfish tank or pond. Goldfish eat a lot and produce a lot of waste, which can pollute their water. Without a filter, your aquarium water will soon poison your fish. Language: English
Question and Answer Solution
You should always include a filter in your goldfish tank or pond. Goldfish eat a lot and produce a lot of waste, which can pollute their water. Without a filter, your aquarium water will soon poison your fish. Language: English