i have a 10 gallon tank and i currently have 4 baby red belly piranha i know i know i will need to move up in the near future, but i currently have a real crapy filter whisper 20. i want to get really good filtration so i was wondering if an emporer 280 will fit on the back of a 10 gallon tank because my emporer 400 is really tight on the back of my 29 gallon so i was just curiouse if it could fit thanks