✔ 最佳答案
Guppies - need at least 3 of their own kind with all males or 2 females per male. Have long, flowing fins so shouldn't be kept with fin nippers
Platies - same group and sex ratio requirements as Guppies, need a pH of 7.0 or higher
Harlequin Rasboras - need groups of at least 6 of their own kind, excellent community fish
Corydoras Catfish - need at least 4 of their own kind and a smooth sand substrate
Zebra Danios - will fin nip, so shouldn't be kept with long-finned fish. Need groups of 8 or more
most types of Tetras - need at least 6 of their own specific species, some species fin nip