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It depends on if you are doing a complete water change or a partial water change. I usually just leave the fish in and siphon off about half of the water than replace the water. The fish get a bit nervous but seem to be fine with being left in the tank. To answer your question: No, you do not have to remove the fish when changing the water.
it means your swimming in a pool with dirty water and fish.....get out!
Pescado means fish (a fish ready eat). If the fish is in the water swimming, its called pez.
it means he is different from others
it means that you get nervous
The tail fin of a fish (the caudal fin) is a fish's means of propulsion through the water.
Yes
it means a animal that lives under water and it has gails
Frogs are amphibians. This means that they can live both out of water and in water. Fish, on the other hand, cannot. They have gills and need water to live. This is the biggest difference.
Any fish that is killed by any means before they get old..
It means that something is hard to understand or to "grasp".
aquarium means: alot of water surrondering the fish that live in it.