Single Seed NFT (Nutrient Film Technique) Question

[Tyani7505]

So how big do you think?

 

[someguy]

yup, i overkill on the aeration

 

[raoulduke2.0]

Where can I buy one of those rings shaped air bubblers in the bottom?

 

[Tyani7505]

Where can I buy one of those rings shaped air bubblers in the bottom?

I purchased it at Pet Smart for a whole six dollars.