If you are referring to the Pleco, then no. They are a fish and fish use gills to extract oxygen from the water. In poor water conditions you may notice fish staying at the top of the water almost like the are gasping for air, however most species of fish can not take air directly from the...well....air.
No, because plants are not made up of algae
Smoke eaters are extremely efficient air cleaning systems. They clean particles up to three microns which allows people to breathe extremely clean air.
organisms that make up food chain are, the ocean mammals and also the land mammals
Most of them will eat other greens like lettuce and zucchini as well as algae. It sometimes helps to blanch the vegies to soften them up for the fish to eat. Good pet shops should stock pellets designed for algae eaters.
Yes
You should really get a algae eater. Some of the alge killers are harmful to the fish. it really depends on what type of algae. if its green water algae then use and algicide which you can purchase from aquariums. if it's filament algae then get some snail or algae eating fish. the quickest solution is to scrap the algae off yourself.
No they do not
The only algae eaters that are safe with goldfish are bristlenose plecos. Weather (dojo) loaches can also be placed with goldfish, but they are not comparable to a pleco for cleaning algae (though they do clean some).
It can go up when hot air is filled and can come down by reducing the hot air.
No . It does not.
yes
to breath