greggsvt
Aquarium Advice Apprentice
What is the best bang for the buck RO/DI filter on the market now? How much$$ and where to purchase it? I've never used this type of filter before and was wondering how often do you need to replace the filters? I know they are pretty pricey and if I have to change them every week or so I might not purchase one. Do they really make that big of a difference in the tank? Will it help in my fight against red slime algae? Opinions are appreciated!!!!