Aquatic plants are good for:
Creation of oxygen
Consumption of CO2
Good for filtration of water
Good for fish
Stabilizes pH
Removes phosphate and nitrate, preventing algae growth
Lower stress and boosts immune system of fish
Usually, when there is the refuge of plants close to fish, they tend to stay out in the open where you can see them
Fish eat the plants
Best aquariums have 6.5-7.8 for pH
Adaptations for aquatic plants: aquatic plants can soak in the necessary nutrients to live from the water
Some aquatic plants can float
Some aquatic plants developed special roots to stick to the bottom of the body of water
Plants need water, sunlight, and CO2 to live
Aquatic plants are adapted to soak in CO2 and water from the water they are inhabited in
Seagrass, an aquatic plant, has gas-filled bladders on its leaves in order for the plant to be buoyant
Aquatic plants have special adaptations to the salty ocean: storing salt and dispensing it eventually, breaking down the salt into sodium and chlorine, membrane barriers which defends plants from salt
Leaves are the main area where photosynthesis occurs
Chloroplasts are the organelles needed for photosynthesis
Because floating aquatic plants stay on the surface, they get direct sunlight and can get CO2. They can also release oxygen into the air