Question

Experts suggest adding more plants to a fish tank whenever you add more fish. Based on the video and the questions you have answered, why do you think this is?

write like a 7th grader

Answer 1

Because more fish make the tank dirtier and plants help keep it clean and safe. From the video and the questions I answered, here’s why you should add plants when you add fish:

- Fish produce waste (like pee and uneaten food) that turns into ammonia, nitrite, and nitrate. Plants use those nutrients (especially nitrate) like food, so they help lower bad chemicals in the water.
- Plants make oxygen during the day, which fish need to breathe. That helps keep the water healthy.
- Plants give fish hiding places and reduce stress and fighting, especially when the tank gets more crowded.
- Plants compete with algae for nutrients, so they help stop algae from taking over.
- Plant leaves and roots also provide places for helpful bacteria to grow, and those bacteria help break down fish waste.

So basically, when you add more fish, you add more waste and need more “living filters” — plants — to keep the tank balanced.