I have a lucky bamboo plant and it calls for a fertilizer on the care instructions however I am unsure of what kind of fertilizer to use and do not want to kill it. It is in water only, no soil, so I assume that calls for a liquid fertilizer. But how do I know which one is best?
Any 10-10-10 liquid fertilizer will be just fine. Just add a single drop to the water when you change it. This article has more information: https://www.gardeningknowhow.com/houseplants/lucky-bamboo/growing-lucky-bamboo-indoor.htm