Right then, this is now my fourth and I think final question! So, I will be putting my male Betta in a 10G (US) tank that has a Filter. There are so many different threads on it but none match my tank description... How much of a water change do I need to perform and how often? With the current occupants of my tank which I got for the cycling process I have been performing a weekly water change and I've been replacing 50% of the water. Is that amount ok for the male betta, bearing in mind that it is 10G (US) and it also has a filter. Thanks in advance for any help!