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fishy smell

1395 Views 16 Replies 11 Participants Last post by  ikuzo
what cause this?
all of my tank don't have this except one. i have removed any died fish / shrimps at sight but the smell is still there.

i cleaned my filter yesterday and hoping the smell will be gone after a few days. anyone know or experienced about this please shere your knowledge. thanks in advance :)
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It is old water, etc. IMO.

I have over 300 gallons of water in my living room and you cant smell a thing.
It is old water, etc. IMO.

I have over 300 gallons of water in my living room and you cant smell a thing.

Don't lie fshfanatic you have a LFS in your house and can't smell a thing right?
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ikuzo, Is the tank in question kept at a higher temperature than the others? and you mentioned dead fish? That could be a source as well.

Try doing a small WC perhaps.
Don't lie fshfanatic you have a LFS in your house and can't smell a thing right?
You been peeking through my windows again??? :icon_cool
old food? sometimes when food gets dropped on the glass divider it gets really nasty and has that fishy smell.
Try increasing circulation, and perhaps be a little more thorough with the weekly cleanings. From my experience this happens when I neglect water changes, do poor cleaning, or have dead spots in the tank where crud can accumulate.
the tank is new, not even a month old IIRC. there's no glass divider so there's no old food. it's my rock + hairgrass tank so i can thoroughly check if there's any dead body there. circulation is good, probably too much though. those are the reasons why i got confused. :(

mistergreen probably right, i should check my ammonia as sometimes fish death still occurs within a week or so.
look under and around the stand for a fish or shrimp that might have jumped out. I know that got me once I could smell it and it only got worst everyday untill I found it on the floor behind the stand.
Madfish
checked that already, lol i should mention that it's the water that smells fishy :)

i'm gonna do a major water change first thing tommorow.

oh i forgot to mention that in this tank, i have a vortex reactor. and the CO2 bubbles spinning there won't mix together as a CO2 tornado. they keep their small bubbles shape and spinning that way, it's just like my water's viscosity is bad or something. really strange.
throw in a carbon filter insert.
Purigen would be better, that is what I use.
fshfanatic, lol at signature.

you know what? another strange thing happened. last sunday i clean the canister filter. and yesterday when i'm about ready to do a water change. i noticed that there's no fishy smell. the water is still a bit foamy when i dsturb the surface.
I suggest clean the substrate well. Warmer Waters, Plants and Substrate = smell.

Let me guess, Your tank is about one year old, planted and around 80 degrees. My wife calls it the swamp smell.

Charcoal would provide temp relief.
Somethings is up with the water.
1. Do a water change.
2. Check the area underneath the rim for stuck on rotting fish food
3. Use carbon for temporary relief
it's about 1 month old. about 83 degrees. i'm having more death recently, two more hengelis. it's probably the strong current.
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