I am looking at doing auto plants with the 4-4-4 spikes and the 2-7-4 spikes in coco coir in 3 gallon fabric pots. I am thinking about breaking 1 of the 4-4-4 spikes in half and putting it into the pot when I put the coco coir in then break 1 of the 2-7-4 spikes in half and putting it in at the start of flower. Would that work similar to biotabs with it?