Need Old or spoilt mini protein skimmer & tips for training fish off food

[zadrian]

Hi, just want to know if any bro here have a faulty mini or nano skimmer available ?

I want to convert it into a bubble inlet as the bubbles from the normal airstone strip causing my lights to corrode badly. At least with the skimmer, the bubbles are contained.

Also I have bought 2 sweetlips but one seemed to have died due to hunger (its stomach was flat). I feed my fish with several flakes and Hikari carnivore pellets. Only like once in 2 or 3 days I feed with the Hikari Mysis shrimps.

How do we wean the fish to eat flakes. I am worried about trying the "starve" fish as I do not want another casualty.