damas I made an account here just to reply to this.
Aquaponics have been a "classic" for years but there's surprisingly little information for it. I'm not a youtuber, but there's a niche here. Make a video, and at the VERY START of it lay out how much you spend on your setup, then how much fish you got, put it all in a easy-to-read spreadsheet, and you've cornered the aquaponics youtube market.
So much of the information online is inadequate because the aquaponics people are permaculture autists and off-gridders who couldn't actually succeed with a commercial farm, if you were to make a reliable setup and document how much it cost along with profits you would have no problem taking 1st place in backyard shrimp farming, or tilapia, or whatever other fish is good for your area. These things DO take aquarium knowledge, you have to know about how to take care of a large aquarium, and once you can do that you can do these. I can't, btw, I'm a fishlet.
