Can't diagnose anything w/out pix. Pls SHOW us the plant, the soil & the pot if you wish us to try & help. Don't know what crimping leaves means either, sorry.

Hi

my apologies, I had uploaded photos but they didn't show up for some reason. The 'brown smudge' next to the dots is what im talking about. Its much browner in person.

By crimping i mean the sides of the leaves are getting wavy and almost crumpled.

Thanks so much! Could you tell me a bit more about why the pebble tray would help?

Pebbles help regulate humidity. It isnt good to keep the roots of a plant sitting in water. The pebbles create more space so this doesnt happen.

As you can see the leaves are constantly sagging a bit (eventhough i just watered the plant last night) and there are black spots on the leaves . Am I overwatering? I water with around 2-3 liters of water once the top 2-3 inches of soil feel dry and the leaves are drooping a bit. This is usually once in 2 weeks or so.

After watering I let the plant drain for an hour or two hours throw out the water in the base and then place it back.

The window is approximately 5 feet away. Its a south-west facing window

In their native habitat these plants grow close to fresh water, so they're definitely no strangers to it. With that being said, they don't like sitting in water that can quickly go stagnant. They love water, but they still need good drainage.

I was browsing my local garden center one day and one of the employees pointed out to me a bunch of plants that they were giving away for free. Most of them were Boston ferns and Majesty palms, but hidden away amongst them was one of these large Peace Lilies. The foliage was limp, but aside from that, the plant was healthy and still in good condition. I quickly snatched it up and loaded it up in my car. When I got home, I placed the whole pot within a bucket and filled it up with water, so both the soil and the plant could get rehydrated again and perk back up.

I've been busy repotting other plants and haven't gotten to it just yet. I have it sitting outside in very bright indirect sunlight. Where I live in the South, it's very humid and we get tons of rain. (It's currently thundering and raining as I type) In between thunderstorms, when I do have to water it, I just stick it back in that bucket and fill it back up again. After half an hour or so, I remove it and let the excess water drain away.

Since yours is growing indoors, it wouldn't require as many frequent waterings. However, when you do water it, always thoroughly flush out the whole pot and let the excess water drain away before moving it back to the spot you keep it in. Never give it measured out water. Take it to a sink or tub and flush the whole pot out with more than enough water. If you don't flush the soil out on a regular basis, then minerals from the water you are giving it can quickly begin to accumulate in the soil and cause problems for your plant.

Thanks for such a detailed response! I guess I'll start putting them in the bathtub and giving them a shower next time they need water