Simple answer NO!
no a plant does not provide oxygen in a fish tank, it has to have an air supply going to it. The fish can eat the plant though.
Decomposers are microorganisms. They live in plant material in the fish tank,
You don't have to, but the Betta Fish likes it because they can sleep in the plant.
Plants would provide oxygen in a fish tank.
Broccoli is a vegetable in it's own right.
No. It can even be rared in a tank or an aquarium!
broccoli, and green stuff!
No
No
The entire plant is broccoli. The part you like to eat is 'florets'
the best plant would be a live one plastic plants can cut or damage the fin of your fish
The broccoli head is actually the collective flower buds of the plant. Each of the tiny green parts of the broccoli head will open into a yellow flower if left uncut. This head rises up from the center of the plant.