CactusI want a cactus but i do know nothing about taking care of this plant. Need advice.
As with many plants, cactus need food, light, and water. You would think that cactus would not need water, but if a cactus is in a pot, it needs more water than if it were in the ground. You are supposed to keep the soil around your cactus moist -- not let it dry out.
Here's a good link for you:
Cactus family includes at least 2,000 species. They can be raised equally as well in the garden as in our house. They do not need a thorough care. They do not need water almost at all, the only thing needed being the sunlight.
The first step in growing a healthy cactus is buying a healthy cactus. Do not buy a cactus with broken thorns, damaged or that has an irregular growth. Cacti can be bred from seed, but thir development and growth can take more than a year.