Hi,
I've recently acquired a 25 litre (5.5 UK gallon/6.5 US gallon) tank which I'd like to keep a single male betta in.
Question is...do I need a small filter for a tank this size, or would frequent water changes be enough? (I have a small enough heater, and the tank did come with a small filter) - I'm assuming that a filter would be best, but would just like to double check, as some sites say you do, others say not necessary.
Thanks
Kim
I've recently acquired a 25 litre (5.5 UK gallon/6.5 US gallon) tank which I'd like to keep a single male betta in.
Question is...do I need a small filter for a tank this size, or would frequent water changes be enough? (I have a small enough heater, and the tank did come with a small filter) - I'm assuming that a filter would be best, but would just like to double check, as some sites say you do, others say not necessary.
Thanks
Kim
