STINKY TANK

[I never finish anythi]

From what I know, they only eat microalgae. So most nuisance algae won't be touched by copepods. They are also microscopic even a billion of them won't help much as a CUC.

This statement is utter rubbish

 

[Knucker]

as you can see phytoplankton, as in single cell algae. They do help some but won't touch macroalgae like hair algae.

 

[Fenral]

as you can see phytoplankton, as in single cell algae. They do help some but won't touch macroalgae like hair algae.

The effect is indirect and second-order. Pods and live phyto combine to out-compete the uglies and create a nutrient lock that can then be consumed or skimmed/filtered out. It's not that they have to eat it; it's that they make what they (Uglies) need unavailable.

As to dealing with the "Smell issue, " if you are both foolish and brave, ozone will solve that.