Are my plants growing at the right speed?

Hey everyone. These are my two girl and this is my first grow. Ive been browsing the forum and have been looking at other people's grows and am starting to get discouraged I think. Here's some info

One is a WW the other a bubblelicious. They are 6 wks old today. They were sprouted and vegged under 4 4ft 40w floros. 2 cool blue and 2 soft white. After 3 wks under the floros I felt like they were growing enough so I put them under a 400w MH about 18 inches over them.

Two wks ago they were given their first nutrient feeding of Pure Blend Pro Grow at 1/4 strength. They were given another feeding when they dried out. And the last watering was just distilled water. I have looked at some other ppls plants and they are massive at 6 wks. I feel like I have the proper light proper 18/6 light schedule but mine are nowhere near as all or bushy. I just FIM'ed the lighter colored any a cpl days ago so I'm waiting to see what happens. This is my first grow so idk if I'm expecting too much too soon or if I'm worrying too much.

Any help would be awesome..

Looking like you know what your doing, Good grow keep up the good work looks like there on time to me...

you mentioned "dried out."
Are you keeping the soil evenly moist and not letting it dry out?
I recently learned how doing that is bad and man what a difference it made for me.

By dried out I just do the knuckle test. Stick my finger in the soil in a few places see how it feels. Lift the pot see if its light hahaha. And I look at the leaves. If they're real perky not droopy and the soil is dry I water. Hahaha. Kind of rudimentary but...

are these from nirvana? when I started a couple years ago I got some nirvana(cheep) seeds one of them was WW this thing runted like nothing I have ever seen everything else from them grew ok

This is where it gets confusing lol. In my newbie haste I didn't label the pots so idk which plant is what. I originally tried to germinate 4 only two lived. The bubblelicious is Nirvana and the WW is from Ministry of Cannabis. Idk which plant is which right now. So if anyone can I'd them that would be cool too haha

Maybe a little small for 6 weeks, but I wouldn't say anything to worry about. Both look very healthy to me. When you go to 12/12 they will stretch out and fill in for you.

As for which plant is which, I would be willing to bet money that the bottom plant in pics is the bubblicious. All nirvana strains look the same to me and that one definitely fits the pattern. The way the leaves get fatter in the middle and come to almost a beveled tip at the end.

Also, did a quick search of Ministry of Cannabis White Widow, and the plant on top certainly looks like what I've seen. Very fat indica-like leaves.
https://www.rollitup.org/grow-journals/448201-white-widow-grow-journal.html

Sonar, much thanks bro. I've sittin here looking and trying to figure out what girl is who. That dark green one with the fat leaves (plant I call #2) is so stinky lol. Idk why , I didn't think they smelled during the veg state but that one does so if its the WW that would be awesome cause that's the one I'm really looking forward to see bloom.