I would love some advice! I was recently gifted a Monstera Deliciosa as a parting gift from my old coworker! This baby is my dream plant and I'm so excited. From what I was told, she repotted it into a plastic garden center pot, and while I super appreciate that she did that, I think the soil she used wasn't quite the right one for this baby because I found some fungus gnats in the soil and some of the younger leaves are turning yellow. So now I'm left with what to do. Do I repot it into a terracotta pot with better soil (I got it almost a week ago now and the soil is still super moist) but risk the transplant shock getting even worse than I'm sure it already is? Or do I try replacing the top soil? Ugh I'm so conflicted! Thank you in advance for any and all help!

Hi brikuz20, to the site!

Is it possible to upload a photo showing how your Monstera is potted? Fungus Gnats are usually a sign of soil that is staying too moist. Although the adult gnats don't harm the plant, they are certainly a nuisance to have around. Often, allowing the soil to dry for longer periods keeps these pests at bay.

Here is a link to an onsite article about houseplant pests and their control. Scroll down the page to read about Fungus Gnats:
https://garden.org/learn/artic...

Hello brikuz20, and welcome to the Garden Forum!
Yes, a picture of the plant and pot would be helpful. The plastic nursery pots with lots of drainage holes work quite well for me, although they aren't the prettiest to look at. I'd wait awhile to repot.
Replacing soil won't get rid of the gnats, they'll be back!
Letting the soil dry more will discourage them a bit.
Yellow sticky traps will help catch the adults.
Products containing Bt-i are a least-toxic, more natural treatment that will kill off the larvae in the soil. Gnatrol is formulated for houseplants, but Mosquito Bits and Mosquito Dunks can also work. You'll need to repeat the treatment every few months, and of course correct the conditions that encourage the gnats.
If the Bt-i doesn't do it, (it usually does), and you want to nuke them with the most toxic, environmentally unfriendly insecticide, look for a granular product with Imidacloprid. "Bonide Systemic House Plant Insect Control Granules" is one brand, there are many others.
With any insecticide, please carefully read and follow the label directions.