We really need to see a complete breakdown of your husbandry, but the fact that you're avoiding water changes is not a good sign.
It's possible to run a tank without water changes, but that comes after you have created a healthy and stable environment for your fish and corals, and always in concert with regular testing and dosing to keep the tank where it needs to be. If your corals are dying within hours (!) of hitting your tank, it is not suited to avoiding water changes.
The fact that your corals are dying so fast suggests some kind of toxicity in your water. Could be from vodka dosing, could be from copper in your water, could be from a rusting zinc-coated screw that fell in without your knowledge, could be from anything. But the point is, they're dying quickly before they can even slowly die because your parameters aren't right. And they're not - while not at lethal levels by any means, your Ca and pH are both pretty low, and your Alk is pretty high.
> I just don't have the time for it.
Done right, you should be able to do a water change within 5-10 minutes, depending on the size of your tank. On my 20g tank I can do a water change in less than 5 minutes. On my 75g, it takes me about 10 minutes. I usually take longer than that because I take advantage of the lack of movement and lower water level to take care of some maintenance, but if I weren't doing that I could do a 10-20% water change on both of my tanks in under 20 minutes.
What I do: I have a mixing cabinet that holds a 20g tank inside of it. In the tank is a mixing pump, a heater and a Sicce Zero utility pump, along with a hose long enough to reach to the tank. When I put the tank into the cabinet, I slowly filled it with water using a 1L beaker, using that to mark off the first 30 or so liters in the tank with a paint marker on the outside of the tank. I then measured the distance between 10L sections and extrapolated the marks up to the top of the tank, and then did some quick math and measurements to put gallon markings on the tank. A couple days before my water change, I fill up the tank and adjust salinity. I have a postal scale to weigh out the salt, a refractometer to take salinity measurements, and my external markings let me reasonably estimate how much water I have. From there, I use Hamza's direct salt addition calculator to calculate how much salt I need to add.
To actually do the water change, I have a Ryobi portable inverter (150w) that takes an 18v battery and turns it into a portable outlet. I have a small pump with a simple hose attached, just drop the pump into the water and fire it up. Take about 2-3 minutes to remove 4 gallons of water, dump that down the sink, and then roll out my hose and fill it up with the utility pump. Do that once for my 20g tank, twice for my larger tank. It took me longer to type all that out than it takes me to do a water change.
> I believe that water changes are not effiecent, timewise, moneywise and envorimently
You know what's a big waste of time? Spending time selecting corals that die in hours. You know what's a big waste of money? Buying a lot of corals and then watching them die in hours. You know what's a big environmental waste? Taking a lot of corals out of the ocean and then having them die in your tank.
If you want to get to a waterchange-less reef tank, you can do it. But you can't just will yourself there. Getting to that point requires a well-balanced tank that has a complete support ecosystem to process its wastes, along with a finely balanced dosing system to restore essential elements as they're used up. Until you get to that point, water changes are a necessary tool to remove built-up wastes and replenish depleted elements.
