My first hydroponic projects. Cos Lettuce. Aquasol plant food

I have recently ventured into a small hydroponic project. I got some perlite, a few net cups, recycled milk bottles, aluminium foil sheets and aquasol plant food to get the project started.

A few cos lettuce seedlings have been transferred to the hydroponic setup and they seem to be responding well so far. 

Photos of 2 weeks old seedlings.

Spring onion producing flowers

This is interesting. I never know spring onion grows flowers. This pot is looking unhealthy. The leaves are no longer deep green.

Cos Lettuce is Kmart Pot

Cos Lettuce is Kmart Pot is growing brilliantly.

Chilli Seedlings growth

Warmer weather has encouraged rapid growth in some of the chilli seedlings.

Another month later, what's happening with the baby spring onion