Next time take the same regular potting soil and instead of peat moss, mix in another 1/3 or so of perlite. Trust me! It's a very useful additive for getting your plants to grow lots and lots of healthy roots and be easy to water and flush properly.
If your seeds haven't really done much in the way of sprouting yet, it's always possible to move them to new homes, but it's a trick to do... just make sure when you give them their first transplant at about 3 pair of adult leaves, they go into a peat-free environment, unless you want to spend the next 3 months of their lives farting around with pH up...