humidity tray

Hi, I recently purchased a Ginseng Ficus and I’ve searched online and on YouTube, but I just can’t seem to get every part of my question answered. I’ve seen pots with soil and a humidity tray and small rocks underneath and I’ve also seen pots with just small rocks and no soil or tray. I’ve read...

For ease of watering (and upping the local humidity) I'd like to put some of my tropicals on humidity trays. I am not a fan of the tray+gravel+pot method, even though the gravel does look pretty. I'd prefer a nice, sciencey looking grid, like these Humidi-Grow trays that Bonsai Boy has. The...