Congrats on the engagement and the new tank! The Elos 75P sounds like an awesome upgrade. For the filtration, I'd suggest using the Super Jet Clone as your main filter and pairing it with either the Oase Bio 350 or the Biomaster 350. If you're worried about too much flow, you can dial back the Super Jet Clone and use the Oase Bio 350 for extra filtration without overdoing it.