First In house Grow

Hello mate, if you gave too much Ca/Mg, so salts, you should flush your soil and give her a week to recover. If you stop watering you allow the crystalization of the salts in your soil and then you'll have a lot of issue. Good luck and happy journey!

I doubt it is drinking less unless you did soemthing else to cause it. Remember, there's significantly more medium and none of it has roots, so most of the pot just sits there wet until roots colonize the volume. if you removed any leaves, that would play a signifcant role too. as long as you didn't use some retard strength on the rootball, i doubt anything was caused by the transplant. In six years and hundreds of transplants, i've yet to see transplant shock. Looks like you tamped that soil down quite hard. Looks like the top layer is hard as cement, lol. Substrate should be fluffy. Don't hammer it down or it just slows the root growth. If not constituted with 50% perlite or similar, start using more drainage amendments. See bugbee's 'maximizing yield...' video for evidence why it is most optimal to have at least 50% perlite or similar. he suggests vermiculite, actually, because it also provides available silica, but the details are less important than the 1:1 ratio. you are in soil so how you feed depends on what came with the soil to start... don't add cal mag just to add cal mag. the plant needs a full diet at all times and not just some calcium now and somem phosphourous later. Needs can change slightly relative to stage of life, but all are needed at all times to some degree. Calcium can lockout nearly every other cation. So, too much Ca is a big problem. I don't think you have lockout. Might be too much or to little K, or the start of Mg deficiency, and other things can look similar. Symptoms are not discrete. May need to see some progressin to confidently diagnose. Starting at bottom indicates a mobile nutrient, so that helps.

It says in your diary that you just transplanted 2 days ago, give the plant time to establish in the new pot. It will take a few days before it starts taking off again. You just transplanted and the soil you're using should have enough nutrients in it for a few weeks. Your pots look rather dry, make sure to saturate your pots fully. Underwatering will make the plant show deficiencies. The plant can't absorb the nutrients in the soil properly if there's not enough water.