Hi,

Any idea what kind of soil was used? Also does the pot have a hole in the bottom? If in the US, I'd suggest you get some Perlite or Pumice to help make that mix fast draining. Don't know what you could get in Phillipines to help in the same way.

It's good that you learned to check the soil before you water.

But to answer your Q about if you should water, you need to find a way to check down deep at the bottom of the pot. You can use a stick of wood, even a Pencil. Stick it all the way down to bottom of soil next to the plant, give it a minute & then check the stick, if it has soil on it or feels moist to your touch, don't water, wait a day or 2 & check again. If it comes out clean & dry it's OK to water.

Let's see what other folks suggest.

Definitely remove the leaf and other affected leaves. I rarely water mine indoors but I keep them in a small utility room in the basement (which is cool) for winter with some overhead light and whatever light comes through the basement doors.

Last summer I had them in too deep shade and got some disease going on much like I see on your leaf. Bright light and less water will go a long way. Lesson learned - they like lots of light (don't move them to full sun to begin with though).

July 2017 when I had them in full sun most of the day.

I wouldn't show them from last year due to all the sick looking plants but this year they are looking a lot better despite the disastrous 2018 show.

2019 quite a few are on the other side of the Alocasia.

Thanks for the advice. I'm not sure what type of soil was used by the seller but I can ask.

I cut the leaf out close to where it sprouts from the soil, and when I did, there was a pretty nasty smell coming from the leaf. Does that mean it was diseased?

Added to that, another leaf started to bend in on itself, although there's no browning or softness to it. Is that normal?

The odor was plant rot, cut it out to healthy tissue. Kind of like any rotting fruit/veggies - eat it when fresh and throw out rotten potatoes so it doesn't spread to all the good taters.

The bent leaf is probably weak from not getting enough light as it was growing. No harm letting it be (unless it starts to rot) but if you find it unpleasant looking, then cut it off. I have resorted to cutting any leaves that are wayward leaning - I don't want them flopping into other pots so off with their heads.

The strong smell suggests the plant is still rotting & rot spreads, quickly.

If mine, I'd unpot the whole thing, rub or crumble off all the old mix, get new mix (soil), wash out the pot or get a new one & start over. It one doesn't cut off ALL the rot, it'll continue to spread, sorry.

ill place it in water. There are a few people doing that. Look up hydro sans