Hi, very sorry to hear what's happening, but you gave no information at all to work from. However, yellowing usually means you're watering too often, and that the soil you're using is made up of particles too small to allow water to run through quickly and should be changed to something with very little peat in it (most 'potting' soil is mostly peat and holds water at the roots way too long). So, you need to get hold of some soil (ask at a garden centre - don't use topsoil from the garden.. full of unwanted stuff) with coarser particles AND add a lot of perlite and/or small aquarium gravel so water just runs through quickly. NEVER let the pots sit in any drain water because roots will rot, but as humidity is important (and spraying is a waste of time) DO add lots of large pebbles to a wide tray of water under the pots, but keep the water below the level of the pebbles (and pot). The only other possibility is that you have spider mites, but the leaves would usually become crispy, not soggy. I'm sure watering too often and the bad soil mix is your problem. Also, try to give plants as much light as possible for as many hours a day as possible - the less light they have, the less often you need to water (but do it well when you do it once you're using a fast draining mix).

Did you mean to add a pic of the plant you wanted identified? Otherwise how could we try to help since there's no description of it?

Pirate Girl..we have to guess which plant it is..LOL..

Bw, I'm kidding..perhaps you forgot to add a picture or description..Toni