What happened to Delaware Aquatics?

Help!  I can't contact Delaware Aquatics.  Someone from the net gave me the
phone number (302)783-4042 but I get an error message that says this number
isn't in service.  I have called information and they don't have a listing
for Delaware aquatics or Mike Tronkowski in the whole state of Delaware.
Any help would be greatly appreciated.  Also, what other decent quality
mailorder plant places are out there?

Thanks for your help.