ImACoolguy
Aquarium Advice Addict
I just rinsed it until I can get to the store to get a new cartridge. Should I change it or leave it?
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Until it starts falling apart, rinsing will be fine. When it gets to the point of falling apart, add a new cartridge, after about 3 weeks remove the old one and the new one will have preserved your cycle.
Caleb
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