Aquarium
the water wold have no new oxygen and be filled up with carbon so the fish would dye but i guess the plant would live a little longer
The water plants have cells. Plants live. Rocks are not alive.
filled with water!
If the jar has water in it with the fish, you will kill them.
Tide pools. If you never have been to tide pools and can get to a rocky shoreline close to you do it. Tide pools are filled with little fish, sea plants, crabs, and other things. Look, but don't touch since tide pools are a sensitive environment where things are living.
Other fish and underwater plants.
take the fish out and then dump new rocks on top after dumping the water out.. put the fish in a bag filled with water. this job could be difficult if you have a large amount of fish. it depends on how many fish you have
Many fish eat plants in the water; due to there being a variety of plants and fish, and some of them being herbivores, their diets can vary and plant matter and/or algae is a part of their diet.
algae, decaying plants in the water
put the live fish in a bag filled with water and change the tank then put the fish back in.
They will get sad or stressed. They need plants.
In most cases, no. The fish will die.