my petco has 2 people with a clue about fish but no one could even tell me if they had any java fern. the girl said no. then i went to the tanks and the tubes and found java fern in both.so i bought one of each to compare and found....no real difference they both are a little beat up yet. the one in the petco tube is giving off plantlets like crazy. also i picked up a windelov yesterday in the tube.i ended getting 4 plants off of it. i,ve had great luck with their mixed bulbs. only one didn't grow for me.