bad genetics.

im looking for opinions here.

i am growing two strains from the same breeder. im starting to think they are home made f2 or worse.

these were purchased at a hydro shop.

they are in a 50/50 mix of promix and light warrior.

all the seeds i have grown with the same water and same soil and same lights ....all look great.

these two strains have basically stopped at the cotelydons. we are talking a couple weeks of growth, looks like this .....




again, no nutes, plain soil and 6.0-6.5 ph.

chalk it up to bad genetics?

Stopped? You mean all are plants that haven't grown further than in the pics? How long have they been stalled? The first pic may not be ready but the second two are at the point where they should be transplanted into larger containers of nutritious soil. Their roots may be starting to swirl at the bottom and they are at the size where most plants start to need some weak nutrients to grow much further.

You're probably already aware or have used that mix for seedlings before but we want to say that fertile soils can burn seedlings. The little ones are usually started in a fairly inert medium like seed starter soil.

Light warrior=seed starter. I used half promix and half this stuff.

To me they look burned.

Yeah the first looks that way, which is why we brought up the soil. A quick flush would of course thin out the soil. We think the latter two are passed any problem with fertile soil, though. Pull one or two out of their cups and see how the roots are. Some strains are rootier than others and perhaps these guys just need more space than average.

Seedlings with deformities and trouble growing are often either old or encountered some stress when they were seeds, in our experience. Some clones we're working with now started from a very deformed seedling that was the only one of five seeds to grow. It took an entire month to get growing past the pod leaves but it turned out to be female. When these little problem children turn out well, they're really special plants.