help with picking

So after careful consideration i’ve decided to setup a mantis shrimp tank. I have a temporary 20g with caves for him/her to get used to associating me with food before moving to a larger tank. I’ve experienced several different tiny fish and inverts dying off after being too scared to venture...

I previously posted about a skimmer i was returning but now I want to hear about what other people have experienced with the skimmers I am looking into. I have a Red Sea 750xxl (160g Display) equipped with a Trigger Triton44 sump that has a skimmer section which is 9.5" x 15.5". The tank is...