Cannot find a way

I'm a newbie and have big plans - more than what my tiny head can understand.

I have a 3.5Kwp solar panel with enphase micro inverters(been up and running for 5 years)

I have just about setup a battery pack using Outlander phev batteries - LEV40 in 14s config (48v), I have plans of adding parallel banks. The batteries are connected to Victron Multiplus 48/1200/13

I wanted to integrate my current solar panel with the batteries - so that they get charged from the solar. I would be planning to run the batteries to run my big aquarium for a few hours each day.

Any advice gratefully received