The roots won't grow, they just won't. The water is tepid and the gnats know this as they hover over it. They buzz around with grand expectations and buzz in anticipation of thriving in such fertile conditions (for water is as life-giving as is soil). Propagated from one flesh to another in hopes of growth. However, the roots just won't take. Slime already grows there. Some gnats may lay eggs, glass jelly sacs, tenderly floating amongst the roots. Soon it all starts to rot, to stink, just the same as before.