Increasing bubble production in skimmer

[Delphinus]

Originally Posted by soriano

|                     |
|       |     |       |
|       |     |       | 
|___    |     |____   |    < -----a) Water level here? (at base of neck column)
       /        \                                           or
|    /           \    |
|   |             |   | <------b) Water level here?(about an inch from chamber)
|   |     ___     |   |
|   |    |   |    |   |
|   |    |   |    |   |

Is this a Prism skimmer by chance?

In short, there's no easy answer. You may need to adjust the level between "a" and "b" and find out what seems to work best for you.

The higher the water level is set, the wetter the foam will be (and less green). But higher tends to mean it's easy to overwhelm the collection cup. I like a slightly drier foam myself (so closer to "b") but unfortunately it seems to me you need to experiment a little to find what works best for your tank.