Hello there recently I started to plan to build a sump but what has been most difficult so far is deciding if I want a skimmer then what skimmer I want just so you know I have a 29g tank and plan to get a 10g sump I also have limited space above about 16” from the bottom of the sump to the wood board above so I need something small I would say I have a medium bioload or more I have 5 fish 4 corals and 2 bta’s all suggestions welcome.