I have a few questions about these filters. I am having a difficult time figuring out what kind of filter I should buy. i have a 20 gallon long tank and I relize i need to have a filter that can filter at least 40 gallons of water. A few of my questions are;
Are these filters extemly hard to put together?
How big are the canisters?
Im also concerned about how deep or not deep the water is and if i need to have it filled up to a certain degree for it to properly work. Since it is a long tank its not as high as a normal 20g therefore the water level is not as high.
I have been researching the marineland magnums and the ehiem 2213..
All these i have found at big als if someone could please help me in deciding on which one would best fit myrtle please help!!





