So witch one of paludarium and Vivarium is easier to make ? and how much will it cost ?(for paludarium or Vivarium)
a vivarium is any tank with living things inside. paludariums, ripariums, terrariums, and aquariums are all types of vivariums.
paludarium = water section and land section. probably the most expensive because you'll have to work on separating the sections, filtering/heating the water, making sure the land doesn't get moldy...etc.
riparium = all water, but with plants growing in planters on and above the water line. only as expensive as you make it, but has all the costs of an aquarium including above-water planters and plants.
terrarium = all land. pretty simple, useful for reptiles and amphibians. only as expensive as you make it.
aquarium = all water, what this website is founded upon. for fish, of course. only as expensive as you make it, but still requires proper equipment, including adequate filtration and heating. proper lighting, substrate, and possibly carbon dioxide injection/fertilizers are necessary for a planted tank.