I posted a thread earlier but I feel this isn't related to that anymore. In short I have a 55 gal I'm going to divide in two for each of my Betta's. I'm gonna go with a paludarium theme but without the land part. Ya know, not filled fully but with plants coming out the top, drift wood and...

I just bought a 55 gallon tank and stand :-), and I need some help with the right equipment: Can anyone suggest: -type of filter -affordable heater -it's going to be naturally planted, so how many bags of soil and sand will I need? -what kind of lighting? There are two separate lighting fixtures...