i was asking about only water not really hyro just water cuz i just read this >>>
Basic Rules For The Water-Grown If you are determined to grow your plants in water, there are a few basic rules to consider in order to keep your plants healthy and alive.
Clean and Clear Containers
It is always better to choose glass containers over anything else. Other containers – pottery, plastic, ceramic, metal – may release harmful chemicals into the water over time that can damage or kill your plants. If you don’t like glass and prefer to use one of the other types, make sure to rinse the container now and then to keep it clean, and change the water often to keep it fresh.
Help Them Breathe
When plants are grown in water, they develop water roots. But even water roots need to breathe. Fresh water contains dissolved oxygen that your plant will use to breathe. You must make sure that there is plenty of oxygen in the water at all times for your plant to survive and avoid root rot. Change it often and do not let it go bad! If the water smells, it is an obvious indication that it lacks oxygen. That is a big no-no! Freshen it up pronto if you want your plant to survive.
Water Quality
Unlike soil-grown plants or plants in hydroculture systems, plants grown directly in water have their roots submerged at all times. Therefore the quality of water is even more important. If you suspect or know that your water contains high levels of fluoride or other harmful chemicals that do not dissolve over time, you might want to use bottled water instead. Either way, if your water is detrimental to your plants, your plants will let you know over time. Signs of stress and damage will be clues that your water is contributing to their problems.
Encourage New Root Growth
Don't be afraid to trim back the roots, even halfway - all of them. After you have moved your plant from soil to water, the existing roots (soil roots) are going to be useless in the long run. They will probably rot or be shed, and new succulent roots will emerge in due time. The new roots will be used by the plant, the old ones will not. Cutting off excessive soil roots with a sharp knife or scissors is encouraged; new water roots will grow quickly in water rich in oxygen (remember to freshen up that water!). Make it a habit of checking the roots now and then. Remove any dead or dying roots immediately!
Provide The Right Space
There are plants that develop massive root systems. Certain Dracaenas, for example, make a lot of succulent water roots so it's recommended to have a nice big opening in your vase/container to be able to pull the plant out whenever you need to change water or clean the container. Of course you can always start off your plant in a smaller container and then move it into a larger one as its roots grow.
Feed Very Carefully
Your plant’s roots will burn easily if fertilizer is applied to the water in full strength. Dilute the type of food you’re using to a very light application – 1/10th the recommended strength seems to work just fine – and change the water after one week. Do not leave fertilizer in the water indefinitely.
As you can see, there are just a few simple and basic rules to follow if you decide to grow plants in water.