guide me with acacia arabica bonsai

hello ,
i sowed some seeds of acacia arabica and they are 13 in no. with the height of 1 feet in 6months
i would like to make them into bonsai as the leaves size is small and it can survive the tropical heat of
india . i searched the net but i could rearly find any bonsai.
please advice should i go for it or recommended web sites if any
thanks

A picture would help. Also, it's not the height that is important for bonsai, it is the girth of the trunk.

The correct name is Vachellia nilotica. This is the tree that produces gum arabic. I have grown Vachellia farnesiana, the sweet acacia. Google on Vachellia bonsai and you will probably get plenty of information.
Meanwhile, keep them growing to thicken the trunks. Gradually prune back the taproots and encourage shallow root systems.
Iris