To improve skimmer output

This is the output of the skimmer which has been running for more than 24 hrs. The trick is to add 2 pcs of limewood
air supplies inside the body to improve the air bubbles quatities. This skimmer used to run with only a powerhead, & the output is very weak. To improve the output my initial attempt is by adding an air supplies to the intake of the venturi but the result is inconsistent. After then i've put in 2 pcs of limewood to give more aeration to the chamber & it really make the difference. It have been running in this way for few months now, & so far the result has been good. The pic u have seen is the max. output it can give so far. This is a tip which i'd like to share with u people, try it!