Hi,
Hm.. Yes it does matter, Ficus is (one of) the largest tree genusses and there is a wide variety of possible growing habits. So knowing which species you have makes a difference.
A common ficus to me would be a ficus bejamina, which this 99% certain is not, as benjamina has a little 'lip' at the tip of the leave, which allows rain water to drip off.
It *might* be the retusa, often seen in Bonsai. But it seems like the leaves might be a tad small. But that may just be illusion of pictures.
Most ficus love heat, hate changes, and adore moisture in the air, and light. Make sure the roots stay moist, but (hardly) never waterlogged.