adding more perlite to existing plant

Ok, so for some that has read my previous posts, you will remember that i had some issues with soil and decided to transplant into other soil. It seemed overwatered, because it was drooping, but now, 8 days after the transplant, and the last watering, its bone dry, but still droopy, so from reading this awesome forum, i think i might not have enough perlite, so their is not enough aeration, drainage, etc.

So question, is it gonna be possible to add more perlite to the soil now? If so, how? Just work some in, transplant again?

Plant is about 60days old.

You can lift the plant out of its pot and put some perlite, expanded clay, vermiculite or coco coir down on the bottom before putting her back in. Pictures would help as well

First pic taken just now, added a second one of a few days ago, as the light was not so good on this shot. So just perlite in the bottom?

I see the plant is showing some good progress, the time between the two is 5 days

If the soil is bone dry, it can't be overwatered. Lift the containers to feel how heavy they are. If they are heavy it is because of the moisture, if they are fairly light the soil has dried out. The less moisture in the soil the lighter it will be.

Plants 'droop' differentely whether they are overwatered or underwatered. If overwatered the leaves will sort of curl down and the leaf tips claw. Underwatering results in the plant going flaccid and if it persists the whole plant will just wilt severely.

Overwatering is from lack of oxygen in the root zone. It usually occurs from the soil being constantly drenched or containers sitting in stagnant water (depleted of oxygen). When you do water though you should water thoroughly, until the media is entirely saturated. Then wait until the containers lighten up and do it again, but before the soil is bone dry.
Potting mix is made from materials (like sphagnum peat moss, coco coir) which will actually repel water intially unless it already has some moisture content.

Most potting mix already contains perlite. Was there already some in yours? I'd say many of those that do already have enough. What brand are you using? Perlite doesn't hold moisture or nutrients (no CEC), too much will lead you to have to water/feed more frequently. Otherwise you can't really mix perlite or anything into existing soil, without disturbing the roots and chances are you wouldn't be able to integrate it effectively. You don't really want pockets of perlite creating larger gaps or air and dry spots in your soil mix as roots wont grow well in those areas.

I recommend coco coir for aeration as it also holds moisture, and has a cation exchange capacity so it holds onto nutrients (which would otherwise leach away).

Im using an organic potting soil local to us. Its called cultera. The potting soil has coco added, not sure about perlite.

I am getting im the notion of weighing the pots.

I know its a difficult question, but if you look at the pics do they look overwatered?

I see the bottom two are drooping, the secondary growth looks good. The top two on the other hand looks like they might be cupping a bit. But if i look at the plant as a whole the top leaves always seemed cupped until they grow a bit. I have heard it might be heat stress, but not too sure, as my temps at canopy level is about 29. And im the middle of the plant, 26

Droopy bottom leaves

Secondary growth looks good to me

Cupping, curling or canoeing top leaves. I see the leaves look burnt in this pic, but its not, i have a 2700k shining from the side which fave this effect on the photo