There may also be the issue of chlorinated, fluoridated or soft water. Chlorinated water can be treated by being left out for a day or two. If you fear that you have salty water that is a result from fluoridation or soft water, you may want to purchase filtered water if you are strongly inclined to keep your Lucky Bamboo thriving. It is true that plants, including your Lucky Bamboo, need salts for nutrition, but the three previous examples provide salts that your Lucky Bamboo has a hard time dealing with. Yes, the potassium in soft water is beneficial to the plant, but a buildup of chloride can cause some problems. Other than too many salts in the irrigation water, the rootzone may be overcrowded with roots. If that's the case you may want to repot the plant. I hope this information is helpful. Please let me know if you have any further questions. Happy Gardening...Dr. Robby