Originally Posted by mr_X
Well, to cycle a tank is to introduce an ammonia source. With a cycle using fish, the fish make ammonia with their waste. This ammonia is poison to fish. I don't see how you can take care to not torture the fish seeing as they must swim in ammonia filled water.
It seems you're stuck in you way of thinking, it's sad that so many people see a method of cycling as cruel because they don't understand how to properly maintain safe levels.
With testing and water changes the ammonia/ nitrites will not reach a high level.
Fishless cycling is boring. That's the whole top and bottom of it.
People claim it's the best way to cycle a tank but it's not.
If you're using LR
then it's no different from using a seeded filter in a freshwater tank.
A light stocking and dedicated monitoring of the water quality is a lot better than staring at an empty tank for a month or so.