First indoor grow and not sure what kind of plants i have

Hi there im on my first grow indoors but fourth total. :D Anyways its my first indoor grow started out 6 little seedlings from papert towel.There all about 16 days old and just ferted last night 3-21.My babies are looking fantastic.But the problem is ive been buying dank for the last year and only got the six seeds and dont know what kind they are unfortunatly no camera.They have real wide and rounded leaves seem mor stocky than lanky :D There on there about 6th noid growing in soil under hps 250 watt and 2-40watt sun stick floros also in soil.Any help would be appreciated and sorry for being so long.PEACE AND KEEP ON TOKEN.