My first Photoperiod

I decided to try photoperiod plant, I've been growing 1.5 years only autos. The main reason: I wanted to compare if it will grow faster or bigger than autos with the same vegetation length, I was going to keep it 4-5 weeks. I was trying to germinate it for a month. I was using paper cotton pads, as i always do. Then decided to put it into peat pallet. I was watering it with pure water at the beginning. With a bit of nutrients at the second week. With H2O2 at the third week. Usually this methods help me to germinate the seed, that didn't want to on the first week. So i remember only 1 time when seed didn't germinate successful after all of this. This is the second one, It's dead as fuck. After a time a realized, I noticed the seed was a bit odd, not sure about the shape, but it was definitely smaller, then the usual ones.