Spindly seedlings

Hi everyone,
I have three trays of seedlings sitting on the same table in front of a window. They were all sown on the same day, they are all in the same compost in the same type trays and they all get watered at the same time in the same manner. The tray of chillies peppers and the tray of aubergines are growing in the normal fashion as are the half tray of cherry tomatoes however the other tomatoes (Ailsa Craig) are very spindly. Can I do anything with them or are they for the compost? Any idea why just those seeds - is it tomatoes in general?
Thanks

 

Tomatoes are always quick to germinate.
You need to replant them very deeply ,up to the leaves Asap.

 

Transplant them with their leaves just above soil level, even if very spindly you can plant them like this, but put them into cellular trays so they each have sufficient space:




And if they still grow spindly, then do the same again and again, in ever increasing size/depth of pots, until there's sufficient natural light/growing conditions, and then you can still plant them at a low level in a pot or open ground and build up soil level around them which will promote even further root growth around the buried stem.

 

@Scrungee fantastic - I never knew you could transplant like that! @roders running for the pots now.....great advice and art work!

 

Light levels drop very quickly as you move away from the window, so the variation could be due to the light levels.
It might help to put a reflector, of tinfoil or a glossy white surface, behind them if practical. They would need an eye keeping on them to make sure they don't overheat or dry out too quickly.
Tomatoes will form roots from the stems if given a chance by planting deeply.

 

Thanks @Nigel you can see everything has been achieved Repotted and reflected - crude but worth a try and it fits perfectly on the table!

 

Thought you might want to see this...growing away nicely after the repotting and the addition of home made 'light screen'