+1 about washing the filter sock. Never wash it with detergent. Either wash it in hot water or a small amount of unscented bleach.... rinse well and let dry completely.
If that is not it.... perhaps the Turbo Start caused a bloom of bacteria. Since it is a new tank.... let it resolve itself before you dose any more. Also, check the amount you dosed is correct. Make sure you consider Total Water Volume and displacement of sand, rock, and equipment. I have seen where someone put too much turbo start in and they got some similar foaming. Are you running a skimmer? Assuming that too has blown out. Let it resolve itself.
Since you are new to R2R.... Welcome.
New tanks are great! Take it slow... take your time and don't give into shortcuts and trying to speed the process. Do a good solid cycle.... and get a well-established environment. It will take a while..... even using Turbo...
Good Luck! Welcome!