My indoor plants are one by one slowly dying and I'm clueless as to why this is happening. I even bought these water droppers to regulate the water level (at least, that's what I believe they do), but even with water in them, some plants just seem to dry out. I also added hydro granules at the bottom of the pot before potting the plant, which should also keep the ground hydrated as far as I know.
For some context, I'm living in an apartment without direct sunlight pretty much the whole day (except for summer, then I've got sun until 11am). The apartment is lacking a bit in the insulation department, so at night it cools down quite a bit to about 14/15 degrees Celsius. Over the day, I don't really turn the heating on either, so it's often about 17/18 degrees Celsius inside.
I've included some pictures below for more context and the current state of my plants. For this first one, the leaves all started hanging recently. I repotted this from the shop I bought it from to this new pot (with hydro granules at the bottom) about 3 months ago now. I give it some water every week and keep the water droppers filled, but the leaves are hanging already.
This second one seems to get enough water from the droppers since the ground is wet every time I feel it. This also has hydro granules at the bottom, but even with the dropper, its leaves feel extremely dry and I feel like it's been surviving like this for over 2 months already. I repotted it about 4-5 months ago when I bought it from the shop.
I feel like the small one doesn't have much chance to survive anymore, but perhaps some nice tips here would be able to save them? I just want to know what I could be doing wrong here. I understand this is difficult, and perhaps, a lot to ask for so a couple of good tips could perhaps do the trick too.