Yep, as suspected, only got 5 votes
But it does not matter as I've decided to go with the Oase Biomaster Thermo 350 and this seems to be a fairly well thought out filter from what ive seen online and from some of George Farmers youtube videos.
Thank you to both
@mbsqw1d and
@Wills for their input into this as proved to be very insightful and useful for me.
Two things the made me change my mind away from both the Eheim and Fluval external filters was, one, the fact the sponge filter has it own compartment and this compartment is easily taken out to rinse in old tank water and returned without having to open up the whole filter.
Anyone who has had external canisters knows it can be a little bit of a fiddle to get everything back together properly to ensure it is watertight, primed and ready to go when all is finished.
This can be annoying, especially if short on time, but with this separate sponge compartment I am hoping this will make life easier.
Second thing was the heater, this is housed in the actual filter itself so I won't see a heater inside the tank taking up space and easier to access if its int he filter rather than behind plants or decor etc and covered in debris etc.
What I plan to do is to add a controller for the heater so that if any problems occur at all, it will automaticlly shut off, with a display thats hopeully easy to see from any point in the room looking at the tank.
Will have a look online for a suitable heater controller.
Thanks to all who read this and perhaps commented and a special thanks to the 5 folks who voted
Actually hang on, I voted as well, did originally vote for the Eheim but changed it to the other vote for Oase, so it is now therfore its a more special thanks to the 4 folks who voted