advice

Good day , I am hoping to pick the brain of the community quickly. I have a 1000l tank currently and I would like to add a bio-pellet reactor to the system. What size reactor would you recommend and how much media would I need for it ? Is there any specific way that I can use to calculate...

Thoughts? Can anyone suggest the best skimmer for that price range in GP? I have a total water volume of aprox 350liters after the displacement from the te LR, Sand and other goodies. So far the Bubble Magnus Curve 5 looks good at R2200 form Jungle aquatics. Anyone have experience with this...