probably a nitrate spike?
This mechanical flter will not remove organic waste. Only the activated carbon, protein skimmer and in sall proportions live bacteria.
Important please read;
Be honest with yourselves and please look in your gracious sump, or canisters, isn't the water running through a sponge? Isn't that another method of mechanical filtration?
If you can have it 50 times better ( a sponge = 50 microns) for just about few bucks, would you be so ignorant just to not have it and ignore any potential great idea just because you must built and because it doesn't have a label on? Would you look for any excuses just to justify the ignorance of seeing a concept you refused from the beginning without trying it?
How about i patent these devices, i sign a contract with the factory who makes them. I am adding a name to them, then advertising and reselling 10 times over price. I am sure will be a hit and everyone will buy it. The greatest 50 times more filtration filter. Easy, handy and fast set up, efficient and easy replaceable. Everyone of you will buy one just because was sold by your favorite pet store. Same thing happens daily with so many products on the market!
P.S
I hope you guys understand the flight on the plain would not be possible these days without people like if we were stuck in old technologies instead of thinking to alternatives ways. Between USA and Europe a boat can travel too and is more natural. Why would you flight a plain. Only birds can fly .. . . .
"e pur si muove" Galileo Gallilei!