Plant height on day 19 of grow Help!!

[Franco74]

This is my first indoor grow 2 autos and 1 bruce banger on day 19 they look very healthy but are only about 5 inches tall. should they be taller? they are in 5 gallon cloth pots under a 400w MH light which is 23 inches off the top temp is holding 80 degrees under 18 hr lights 71 degrees in dark

 

[gorillaglueaaron]

It's all good, this happens to all my grows.
Small internodes=Dense buds/canopy

 

[Chad.Westport]

You're doing good so far, keep at it. Not all plants grow the same or at the same rate. As long as they are looking healthy, don't go changing everything.