[supersmirky]

Welcome! Glad to have you here!

Get us some pics. These guys have helped me out tremendously so I am sure you will learn a lot from them too

 

[supersmirky]

Wouldn't a little Duetto 50 or maybe an elite mini work good?

Then if you use CO2 you can use those filters as the diffuser.

Looks like the tank needs a top off of water. I like the banana plant you have in there...looks like it has tons of "bananas"

 

[supersmirky]

I don't see why not. I have 2 tanks that are 20 gallons each with no filter as I have tons of plants in them. The Elite was meant for filtration in tanks so as long as the foam is in there, it should work good for biological filtration. Or if you feel better, you could put in just a little sponge filter