Tropical Fish Keeping - Aquarium fish care and resources

Tropical Fish Keeping - Aquarium fish care and resources (
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Crawson 08-27-2008 04:56 PM

Newbie Question
Hi, I just put 4 guppies in my new 20 gal. tank as starter fish. There behavior is odd, swimming at the top of the tank and never going any deeper. I don't think they are gasping for air and I belive I have the tank properly airated. Is this behavior normal for new fish or is there something else going on. Thanks

willow 08-28-2008 10:24 AM

guppys are mainly top swimmers anyway,their mouths are
in a upturned position for eas of feeding.
i find the vast majority of my guppys stay at the top
of the tank.
keep checking your water readings,guppys are not the most hardy
to cycle a tank with,it would be easier for them if you could
beg some filter media from a friend perhaps.
if that is not an option,then small water changes will
keep the toxins down.
hope all goes well.

NaomiiSmith 08-30-2008 01:13 PM

I have tiger guppies, and they almost always are on the top or near the surface of the water.
however we had the thermometer slighly lower than it should have been as the room its in is always roastin, when we first put in the guppies they never ventured to the bottom,,,neither did the red tailed shark, oon figured out that the temperature was too cold in the actual water. They stayed at the top constantly to get heat of the light..!So maybe you shpuld try turning up the thermometer by just a degree or two.

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