I've been thinking about upgrading my filter on my high tech 37 gallon tank. I currently have an eheim 2217 (could be a 2213).
I have a koralia 1 pump running to improve flow. Would a better, or bigger, filter be an improvement or unnecessary?
If you had a heavily planted high light 37 gallon tank, what filter would you put on it? What do you think is the best and why?
The only restriction is that it has to fit in the cabinet under the tank.