SimonC86

I don't know why... Never had this with a 10g. The 55g is starting to make my house smell like the LFS!!!

coffeebean

maybe you need to do more water changes?
i find on my tanks the smelliest parts tend to be the nooks and crannies on the lids. have you checked out and wiped down around the rim and lids?

aquarist48

Hello Simon. I suggest adding activated carbon to your filter if you don't have it in there already. If you are using carbon and your tank is still smelling then maybe it's time to change it out and add some fresh. It should be changed every 3 weeks.
Best of luck,
Ken

sirdarksol

The fishy smell is usually algae, and if you're smelling it, it likely (though not for sure) means that there's algae somewhere that's exposed to air at least some of the time. The lid immediately above the filter output is a likely suspect.
Inside the filter is another possibility.

Not a fan of activated carbon (except when I'm trying to remove something specific, like meds), and my tanks don't smell, so it's not always necessary for a neutral tank smell (though I'm sure there are circumstances that would make it so)

Shawnie

IMO if you read this thread HELP My new oscar is dying... it will give you some insights to another reason why it might smell..its overstocked with huge waste producers and still cloudy as well as allot of poo being found in the tank even after a water change ...my oscar tank would smell also until I started every other day water changes

coffeebean

well shawnie, i think you found the source of the smell

SimonC86

I did a 33% water change yesterday, I don't know... Maybe it was just in my head... It doesn't smell at all this morning... or it could be from my sink where i dumped the water last night from the tank when I use a small bucket to clean the gravel a little bit.

ifixoldhouses

Fresh driftwood will stink things up in a hurry

peacemaker92

haha wow! Sometimes, when I come home, I love to smell the water from my tank! lol reminds me that fishkeeping is a GREAT hobby!