The stabilizer is the issue. I have never been able to get spot-free negatives if I use it as the kit directs me to, so now my final step uses photo flo and just a capfull of the mixed stablilizer. Will it matter? I don't know. I'd rather have spot-free negatives. In your case you can rewash with lukewarm water and use a photo flo rinse. That will clean them up.