hi there, had my new setup about 2 days now... ive got a 10g tank (1.5foot) with an underwater gravel tray, a small air pump and airstone, heater.... and a fluval 1 filter for extra filteration. I have 2 amazon sword plants and a few peices of slate etc with a small 15watt light. I have 2 african dwarf frogs and 1 platy for the cycling period... but in time when the cycle is complete i want some kind of shark to go in... not an aggresive one which will harm the frogs or other fish? any ideas of any sharks i could get? or maybe just fish you might feel would go well with my setup, thnx 