slow growing, help

[smokeitd]

seems healthy, water temp is 72 and air is 75~

18/6 cycle. using 1/3 nutes, water ph is fine.

why is she growing so slow? lots of bubbles/spraying roots and they are nice and white.

she is growing about an inch a week which is slow imo. i have 4 26w cfls about 4-5 inches away, if i put them any closer the leaves edges begin to curl up.

its only like 7 inches tall and it's 45 days old. any tips please?

 

[voffi]

it could be the strain itself?

 

[smokeitd]

it could be the strain itself?

its ice, no idea its growth rate, but there are a lot of shoots that are touching the node above it. lol the stem is short and the nodes are too close together so the shoot that comes out doesn't have much room since the leaves above are block it from getting good lighting.