Hello turtles masters :)
I have 20cm (shield) turtle in 70L of water in aquarium.
As a filter I use Repti Clear F350 (276L/hour 6W).
I also use ReptoFresh and ReptoSafe.
Problem: Even I clean the filter almost every day (it get dirty fast) water can be pretty dirty in a week. I don't wanna change water every week. I have read some articles in which people change water every second week, but some of them change it only once a year.
Question: Is there something I can do in order to keep from doing water changes every week?
I'm wondering if I should be using a different filter or caring for it differently? Would adding any natural "filters" like plants or even fish (which could not be eaten by my turtle) help?