Gang@Ukaps Can anybody supply the dimension of an FX5 filter and any issues people have / heard of - I have trawelled through the net trying to find the dimensions. Previous post regarding external filters - considered buying a Ehein 2078 was advised to buy a 2080. My cupboard will accomendate a 2080 just, to throw another spanner in the works, it was mentioned to fit an internal power head to improve water circulation - don't know whether i fancy this - has anybody done this or considering do this. Debate: 1. Buy an FX5 size dependant / issues and concerns 2. Eheim 2076 or 2080 3. Stick with what I have EX1200 and fit a internal powerhead. Assistance required Current set up: Tank: Aqua One Ar980 approx. 217 litres. External filter : Tetratec 1200. Substrate: Seachem florite 2 â€“ 3â€ deep Heater: Tetratec 300 watt â€“bigger than required. Substrate Heater. JBL Protherm basis 250 ltr CO2: Dennerle Professional up to 300 ltr. Lighting: 2 x Flora glow 30 watt 36â€ in length 1 x Aqua glow 25 watt 30â€ in length. Regards Paul.