i have been trting to decide a filter setup for my 125g tank i'll have 7 red bellies in it,right now there in a 65g with a xp3 and 2 aquaclear 70's i have been looking into the eheim 2260 2078e and the 2080 and the fluvalfx5 i will start the new filter on the 125g maybe also add a aquaclear 110 then when the tank is cycled i'll move the xp3 over also. i have heard mixed reveiws on all these filters but i assume the eheims are the best but they are expensive so i have been thinking fx5 or another xp3 witch i have been very happy with but the flow is weak i need more flow in the tank.also i'll been using sand and need something that can keep my tank clean any ideas?