FluvalC4 Carbon - 3-Pack

I have been ordering this for a while for my Fluval filter, helps keep the water clean.

Good price compared to local pet store. Helps keep my tank clean.

Work great. I am happy very with these. Keeps the water nice and clear. One thing I will mention is a warning to change them every 2-4 weeks. I was changing them out one time after about a month and the mesh bag disintegrated as I was pulling it out of the filter. It would not have taken much longer for that bag to come apart and all of those little black carbon granules would have been on top of and mixed in with my pretty white sand and would have been impossible to separate. Other than that, these work great and the Fluval C4 is an awesome filter in general.

Very happy with the whole C4 filter. Don't seem to see any water chemistry change with these carbon filters versus the standard filter. Will be going back to the standard filters and water changes. DO follow directions and rinse this before putting into tank! I was in a hurry and was not thinking and put the filter in without rinsing it. Instant black cloud. Fortunately no ill effects. Seem to last quite awhile.

best when used in conjunction with carbon impregnated filter pads, keeps down all water odor

These carbon packs don't seem to have a lot of dust and work pretty well. I don't use carbon often, but i like to keep it on hand if i ever need to polish up water conditions.

This is our favorite brand and when we couldn’t get them at the pet store you guys came thru with next day delivery!!

This product was just what I needed and will be a consistent purchase while I own my current fish tank.