So I have a 20l Dennerle which is currently running a Azoo Hang on the back filter - Mignon filter 150:
http://www.fish-fish-fish.com/azoo-mign ... r-150.html
I like this filter, it's pretty small, looks more attractive than a lot of HOB filters I've seen and seems to do the job well. However since upgrading my lighting to a TMC Mini LED 400 the tank feels a little crowded around the top, so I'm thinking I either need a small but powerful internal filter or I should just bite the bullet and go for a half decent external with full lily pipe action.
Thoughts, advice, suggestions and offers of products more than welcome!
http://www.fish-fish-fish.com/azoo-mign ... r-150.html
I like this filter, it's pretty small, looks more attractive than a lot of HOB filters I've seen and seems to do the job well. However since upgrading my lighting to a TMC Mini LED 400 the tank feels a little crowded around the top, so I'm thinking I either need a small but powerful internal filter or I should just bite the bullet and go for a half decent external with full lily pipe action.
Thoughts, advice, suggestions and offers of products more than welcome!