Very Bad Smelling Water?

[codell]

dont know whats wrong tbh i have 3 plecs, 13 apple snails (all alive an moving), 1 siamese fighter, in a 2ft tank, i do a 10-20% water change each week, gravel vac once a week, its currently filtered via an aquaone internal filter capable of upto 3ft tanks??? the filter media is cleaned once a fortnight in seperate tank water.

I just cant understand why my water is smelling really bad, i have no ammonia, no ntrites and a reading of 16 nitrates, ph 7.2.

 

[WILDER]

Can you describe the smell, rotten eggs or a sulphur smell.

 

[codell]

tbh its not a sulphuric smell maybe a little eggy dont know lol

 

[WILDER]

When your tank water dosn't smell like a earthy peat smell, it smell foul it can be a sign of a bad bacteria infection in your tank.
Plecs are massive waste producers and when you do a gravel vac and water change that can really smell.
Even a nasty going off chicken smell can be a bacterial problem.
Taken from the link. http/www.ponddoc.com/WhatsUpDoc/FishHeal...tleBacteria.htm
In extreme cases you can smell bacteria. It smells bad. If your pond smells like sulfur or rotten eggs it’s a good bet that bacteria is running rampant in your system.

 

[kpintheshed]

do a water change that normally solves it

 

[Amunet]

Is the heater touching the gravel perhaps?
I know that is what was wrong with my little 3 gallon.
I had pushed down the heater too much and the bottom of it was touching the gravel giving the water a VERY bad smell that filled up the room.
Numerous water changes is helping it go away.