combatibility

Getting two new 35gallon longs, around 3 foot, 140 ish litres. What would people say would be their favourite sort of fish or things to do with such tank? Community, breeding, crab? I'm thinking about possibly doing a skittish community including scarlet badis, sparkling gourami and the...

I have a large tropical tank of which I have some harlequin rasboras, platys, mollies and male guppies. I was wondering if I could add a few female Bettas as I'm new to fish keeping and not sure of their temperament (particularly with male guppies?) I have enough space for more fish, live...