Anyone use the Eheim pro 4 250t filter? If so would you recommend? Your thoughts on it. Have read mixed reviews on it on Utube etc. Thinking of replacing my tetratec 1200 on my aquascaper 600 as the filter is getting a Bit old and noisy now and the prime button is starting to fail. Was thinking of the Eheim or a Fluval G6, but would prefer the Eheim thermo as the heater is built in. But then again the G6 has a easier to clean pre filter.