Originally Posted by Viva
I haven't changed mine yet and I have the same type of filter in my ten gallon and that cartridge has lasted at least 3 months already. I won't change them until debris COMPLETELY clog them, so as no water is getting from the intake to the outflow. And usually you can rinse/swish the cartridge in some old tank water (make sure its old tank water...like when you're doing a water change or the bacteria will be killed) to get some of the gunk out. I have heard some rumors that the carbon in the cartridge becomes toxic after a long period of time...but I've yet to see actual proof of this claim.
Cool thanks!!! Good info. :)
I didn't know tanks had to be cleaned so much. Some people say 2-3x a week. Of course the larger the tank and the filter change that quite a bit. I think the 5.5 gallon is a good size starter tank. And should work out great. The 5 gallon and under tanks would be too much current for a little beta if you had a filter. And the cleaning would be too much work.
I'm almost thinking of going for a 10 gallon tank.
What kind of heater are you using for your tank?
Do you know what the approximate life expectancy of Betta's are? And do their fins usually grow longer and span out more as they get older?