45gallon:
2 x AC110
Clean sponges once a week during waterchange.
225gallon:
1 x FX5
1 x Rena Xp4
2 x 1200gph Hydor Koralia powerheads
Alternate cleaning the sponges in cannisters once a month. Also will be adding another cannister filter to this tank soon.
450gallon:
3 x FX5
2 x Marineland Emp 400s
2 x 1200gph Hydor Koralia powerheads
Alternate cleaning the sponges in cannisters once a month and clean the sponges every waterchange in Emp 400s. Also will be adding higher gph powerheads for better circulation in this tank soon.
oh power heads count too? On one FX5 I have custom duel outputs in the lower corners of the tank, and the other has the std. output nozzle in one upper corner and I have the Hydor 1200GPH in the other upper corner.
I have a 100gallon and I use a Fluval 304 and a aquaclear 110(500)HOB . I really only do filter maintenance when I notice a decrease in water flow.
My media is sponge and biomax.