What do you think about this filter? Is it a good filter? It's submersible pump. What's the best way to use it? Anyone has this type of filter? I have this filter in my 15 gallon tank with 1 Flowerhorn with nothing in it. Is it enough?
http://en.jialu.cc/cp/html/?166.html
http://en.jialu.cc/cp/html/?166.html