My first veggie patch and i found some red ants in it today, around me
onions. Are they going to be a pain? and if so how would you get rid
of them? I do have a 2x dalek like compose bins near by that get black
ants but i just turn it every now and then and it keeps them away.

Introduce the red ants to the black ants by any means that you can (big
sticky stick, saucer of sugar water between the nests etc). One lot will
kill the other lot leaving you with a single problem.

Then get either an anteater or a green woodpecker to finish off the winning
tribe.

Or nippon the buggers to death, plant marigolds etc etc ...

Al.