Skimmer- H&S(reliable and very efficient but expensive), euro- reef(super efficient but take up lots of space due to large footprint), Weipro(cheap and rather efficient but parts are easily damage as the skimmer is mostly made up of cheap plastic parts), Red sea prizm(compact with slim design but expensive compared to weipro and produce some noise which maybe annoying to some)
Chiller- Resun(cheap but prodce lots of heat and noise), reef relief(quiet ad good), teco
Additive- seachem, kent