To fellow gardeners:

I would like to know when to switch from the blooming T5 lights to the fruiting T5 lights(red lights I'm presuming) for my tomato plants. Should that determination be made on:

�height (currently the plants are ~1ft high)
�age (currently the plants are ~ 2 months)
�when the plant starts to flower (currently one of the plants are flowering)
�weight

Below are my details.

The red rocket determinate tomatoes are grown in a flood and drain hydroponics arrangement with clay pebbles.

Your help in this matter is appreciated.