Bottom line: just keep it simple. Feed the plants once or twice (with half the amount of nutrients each time) a week and give plain water the rest of the time.
Furthermore, should I use nutrients every time I water?
You don’t want to use liquid nutrients every time you water—use them every other watering, or two waterings on, one off. It depends on the complexity of your soil and the health of your plants. Too many nutrients will damage your plants. Giving weed plants the proper amount of nutrients requires careful monitoring.
Hereof, how often should I give my indoor plants nutrients?
In general, the majority of houseplants should be fed every second watering during the growing season (spring and summer), which is probably every 10 to 14 days. In autumn and winter feed every fourth watering as houseplants will require fewer nutrients. A good way to feed houseplants is with a liquid concentrate feed.
