Have you ever wondered why we don’t drink rainwater, but it’s good for plants?Or how sometimes tap water can be harmful to plants, but when we drink it, it‘s perfectly fine?
Rainwater is probably the safest option to give to your plants as it is rich in natural minerals and the type of water that your plant gets in its own natural habitat!
However, aquarium water is also good because it’s filled with nutrients and small animal waste that can serve as a fertilizer.
If your fishies love their water, your plants are going to love it too!
The calcium and magnesium content of water is the main distinguishing factor between them. Water becomes “harder” when it contains more of these minerals.
Constantly using water rich in calcium, magnesium, and other types of minerals can lead to mineral content build up in the soil, so you should use filtered water instead!