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- Jun 7, 2020
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So this may be a dumb question. I purchased a Cobalt C Vue 40 gallon tank and it comes with two filter socks. I have always been used to media baskets like the ones I have on my Fluval 13.5 gallon tank. I was going to buy the media baskets for the 40 gallon but wanted to see if keeping the socks is better then that. My question is what goes in the filter sock. What is the normal function of them. I know this may be giving a few people a god chuckle but like I said it’s completely new function to me and don’t want to use it the wrong way.


