Platys and black skirt tetras can live together. Harlequin rasboras, platys, and guppies are smaller than black skirt tetras and would do well together. However, the black skirts nip at fins, so if you have fancy tail guppies it is not recomended to put them in a smaller tank together.
Harlequin Rasboras White Cloud Minnows Zebra Danios Guppies Mollies Platies Swordtails Corydoras
Guppies are great community fish and can live quite happily with most Tetras, Rasboras, Barbs, Anabantids, Dwarf Cichlids, Danios, Corydoras and many other species provided they don't get too big and eat the guppies.
Yes, all Rasboras are freshwater fish. They are a good beginner's fish for a new aquarium.
guppies have live fry
Yes - there is virtually no limit to how many female guppies can live together.
Guppies are compatible with Bristlenose catfish, the bristlenose being one of a few catfish that can live with guppies because of the guppies' water.
the Harlequin duck
Guppies can live very happily with heaps of other species of tropical fish
The tiger fish would eat the guppies.
No. Guppies need a heater, whereas gold fish will overheat. Also, they will eat the guppies.
Many many many fish get along with guppies. Guppies are very peaceful live bearing fish. They breed readily in the aquarium and quite prolifically if left unchecked. Some suggested tank mates are, most kinds of tetras (not all), rasboras, danios, platys, mollies, swordtails, cherry barbs, gold barbs, just to name a few. Look up info online about guppies and most info will list suitable tanks mates.