Air disc big bubbles?

So.. my setup is a 5gal bucket, 8" netpot.. 6" ecoplus air stone and a 7.8lpm 3w pump both outlets to 1 stone via a T. I know the pump is a little on the small side but figured it would work better than it is. I basically have huge bubbles and not the nice mist looking ones like i see in videos.

Mainly posting to ask of that's due to not enough airflow? or do the discs suck? If so.. recommendation for either pump or stone?

The plant looks healthy but is a bit droopy, roots look great, thinking not enough air.

Thanks guys.. i know it's a newb question and i did search, just don't wanna throw more money away.. starting my other tent back on soil for a grow, it's just easier..

Any break in surface tension will oxygenate the water so yeah it will work... You might find the splashes and large bubbles a bit aggressive on young root development and perhaps the turbulence will break some new root hairs off which will settle in your system eddy's and break down, meaning more use of sterilising agents... Otherwise it'll work but an air stone with smaller bubbles or a waterfall will be more gentle on things.

I use a 6 inch fan blowing on my rez to break the surface tension. @Blent, you must be in the ag biz. I was for 40 plus years, only heard braking surface tension from ag people.
You are so right all you have to do is move the water a bit and it will keep the entire rez oxygenated.

Blent said:

Any break in surface tension will oxygenate the water so yeah it will work... You might find the splashes and large bubbles a bit aggressive on young root development and perhaps the turbulence will break some new root hairs off which will settle in your system eddy's and break down, meaning more use of sterilising agents... Otherwise it'll work but an air stone with smaller bubbles or a waterfall will be more gentle on things.

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Thank you.. everything i see makes it seem like you need a bubbling cauldron of air coming up that is so oxygenated it's more air than water (exaggerating)..