Can anyone suggest another good maker of external cannister filters? Some years back when i started in the hobby i asked someone what the best in filter technology in the business was. Without hesitation that person said 'eheim'! I moved my professionel II today from one tank to another and it has started leaking and i cannot get it to stop. This is the second time i have found this problem with this particular eheim filter. I have also had some problems with my wet/dry eheim also. To summarise, i have two eheim cannisters BOTH of which have leaked at some time during their operating life. I do not expect this kind of manufacturing unreliability from a company that advertises itself as the best in the business (not to mention the price premium they charge for this!). To that end i have decided to give another manufacturer a go. Any suggestions?