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Bridget
I plan to launch my first saltwater aquarium soon and would like to ask experts if it is possible to use an external filter like Tetra 2400 or Fluval 5 (the internal components can be adjusted for saltwater). If yes, what are the advantages and what will I gain from using it? If no, please explain the reasons for the impossibility of use in detail, preferably with pictures, as this topic is new to me and I want to understand it better.