With 15 mH/s I'm only getting about 0.5 coins/hour using the Altminer pool. Any help/thoughts would be appreciated.
Your rewards in a pool are based on the % of valid shares you submit to a round - to find a block. 15 mh/s is not enough compared to the pool hashrate, which means your reward % is probably at the very low end.
You can always find another official pool to mine, but keep in mind that the lower the pool hashrate vs the network hashrate, more time to find a block. Realistically with 15 mH you will take days -if you are lucky.
Got it, thanks for the explanation mate!