Plant 4 days without growing, those two plants sto...

"Overwatering" has been a weird boogey man the last few months with people giving really bad advice about how to water. in a less than ideal context like this (tiny plant, big pot it can't effectively drink down in an appropriate amount of time, leading to stagnating water or underwatered plants), you don't want to fully saturate the entire volume, but you definitely want that water going all the way down to the bottom, or else you get a fucked up drying patter that trains superficial roots and restricts your roots from spreading out properly. Roots won't grow into dry AF soil. I see you are in coco coir, so you also need to fertilize every irrigation with a well-balanced diet and religiously get 10% runoff or more (waste water is fine for in-ground plants outside but don't re-use on potted plants). The plants are almost certainlyn showing deficiencies, because coco coir has no nutrients in it. You must provide 100% of a well-balanced diet. This is the super-power of soilless growing. plant-available, plant-ready nutrients around roots in a consistent level and easily controlled and maintained through the formula used. in a better context, this is never "overwatering:" 1) fully saturate (10% runoff if soilless, which coco is unless you amended it) 2) wait for appropriate dryback and repeat. Re-watering at same loss of weight is the best way to be consistent and will require a similar volume each time. If this is unamended coco coir, you need to fertilize every irrigation with 10% runoff. This makes buildup in the medium impossible. You can still overfeed if the concentration provided is too high, but it cannot buildup if you religiously adhere to 10% runoff waste water or more each irrigation. I can't stress enough how important the runoff is to soilless growing. It will avoid numerous potential problems and make diagnosing any issues seen that much easier to better adjust your formula to avoid those problems in the future. Never choose a volume of water to give in a pre-ordained way. that's a bad way to do it - not an opinion. You use what it takes to accomplish the generalized task outlined above in 2 steps. This is a normal plant that can follow normal best practices of most potted plants. Never partially water (excluding tiny plant / large pot context). Don't put a tiny plant in a large pot and it's much easier to maintain a healthy plant. Potting up potted plants is not high stress unless you molest the rootball like michael jackson in a locked bedroom with a drunk 10 year old. So, i'd give more water than you have lately by the looks of the visible drying pattern.. make sure the circle around the plant is slightly larger than the canopy -- it will spread out more as it soaks in, of course, which is a good thing. Make sure that moisture comes out the bottom and enough to "reset" the concentration of nutrients around roots to avoid buildup. This is a short term issue.. once the plantn can properly drink the water of a fully saturated pot, any build should quickly correct itself adhering to proper watering practices for soilless growing. if a plant ever exhibits droop after an irrigation, it's almost certainly a matter of medium constitution. The only way that happens from normal watering practices is due to a lack of drainage/aeration amendments... in a soil you want 50% of volume to be perlite or similar (#2 in usa is a good size, but this varies by region/manufacturer a bit). In something like coco, that on average holds 2/3rds the volume of water by comparison, you only want ~33% perlite or similar. In the end, but end up with a similar gas:water mix per volume, which is the important thing. There's a lot of 'magic' attributed to coco coir. For what it is worth, you have plenty of perlite from what i can see. The pre-packaged 70/30 coco+perlite is good enough. But, for future reference, it's good to understand why you need more or less perlite relative to water capacity of medium. check out cocoforcannabis.com -- again, coco isn't that relevant. Soilless growing is soilless growing... don't let the name of the website create any false ideas. Their guides and articles are good. Dr. Photon's corner on that site is also good. Avoid the rest.