What is this smell?

  • We are currently upgrading MFK. thanks! -neo
This is possible, deep sand will hold pockets of gas that can burp, and some cases kill your fish, if you run sand its a good ideal to stir it up once a week.
 
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This is possible, deep sand will hold pockets of gas that can burp, and some cases kill your fish, if you run sand its a good ideal to stir it up once a week.

I stir it every week and do water change ever week on all my tanks but doesn't mean I didn't miss a spot. Thanks for the advice.
 
If you use Prime as your water conditioner it does have a bit of a sulfur smell to it.

What type of shrimp are you feeding? Do you still have the packaging?

Which version of NLS are you feeding?

Take a sample of the tank water in a clean glass and see if it is still brownish in color AND do the same with your tap water. Compare the two to see if they are the same color.
 
anaerobic pockets don't smell like garlic at all though. They stink of rotting eggs or like sulfur
Hello; True but are all gas pockets the result of anaerobic bacteria activity. Could some bit of food or other organic material get buried enough to undergo aerobic decay and form an odor pocket?

We discuss the anaerobic gases because of the deadly potential. My question being that so far this is only an odd smell and throwing out the something in the sand idea.
 
I do use prime conditioner. The brownish is gone now and tank is looking good again. I feed sea queen frozen shrimp I thaw them and then feed them only as a treat maybe once a month. The smell is now gone as well and I didn't lose any fish.
 
well, do the water changes and tank/filter maintenance and all should be good. I would not feed that brand of shrimp again. just because it may have set this off. for a shrimp treat I use freeze dried jumbo krill, soaked over night in boyds.

glad to hear all is cleared up and good.
 
Will do pops thanks for the advice. I have used that brand for about 3 years and never had a problem but I am going to go with your suggestion just to be on the safe side.
 
Sounds like your tank is not cycled.

A single uneaten shrimp is the same as a singe eaten shrimp, with the exception that most of the single uneaten shrimp is not generating ammonia and thus nitrites. That's because the best ammonia generators in a tank are the fish, not a piece of shrimp. The fish have the chemical process (digestion) needed to rapidly break down protein into ammonia. Not tank water.


Almost all of the ammonia in the tank comes from the gills of the fish, which in this case is to say, from the digested shrimp in the fish.

So yes, it makes perfect sense that if a load of protein (10-15 shrimp) were put into a partially cycled tank, and eaten (all but part of a single one) that nitrites would skyrocket and nitrates would be zero.

That pretty much is what every tank looks like at one point if it cycles from scratch,


Otherwise, I'm with Pops. It doesn't make a lot of sense.
 
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anaerobic pockets don't smell like garlic at all though. They stink of rotting eggs or like sulfur

Garlic contains sulfur. They are the primary compounds in the odor molecules.

Did I read the original post correctly that there are 3 fx6 and a single 2262 on a 150 gallon? That's some serious filtration.

I agree something isn't adding up at all here
 
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