Now that I learned how to cycle new media/filter in a spare tank....I'd like to get my spare set up and get this process started.
My tank came with the Marina Slim 10 filter which uses 2 cartridges. 1 of the cartridges says is good for gold fish and the other for tropical fish. Does that mean I should only use 1 of the 2 cartridges?
Both cartridges are fleece style filled with a mixture of filtration media inside. both contain a product called Ceramitek for "optimizing bio filtration" according to Hagen's website.
So....in setting up this filter for use on a 5 gallon betta tank, should I use thetropical fish cartridge and insert a peice of aquarium foam where the second cartridge would go??