Hardiest Freshwater Aquarium Fish. Delicate and dramatic-looking Siamese Fighting Fish can make good pets for first-time fish owners. Betta fish are the king of beginner fish because of their vivid coloration small size and simple care requirements.
The White Cloud Minnow might be great for a 10 or 15 gallon tank but I wouldnt use it in a 5-gallon tank or smaller. The Rainbow Shiners are hardy cold-water fish who can tolerate aquarium temperatures as low as 50 F which is about 10 C. The koi carp fish can act as decorative fish in your pond and their colors can vary significantly.
Cold water fish can be awesome easy additions to most aquariums.
Theres a reason why parents dont bat an eye when it comes to buying goldfish for their little ones goldfish are among the hardiest freshwater fish. Such fish are good starter fish and ideal for cycling your aquarium ie. They are durable in terms of adaptability to various water parameters their food school size though it needs to be at least six tank. They are shoaling fish so you wont see them hanging out together all the time like some other fish in this article but it is still smart to keep them in a group of six or more.
