Guppie trouble...
 

...Our orange guppie is swimming in a very strange way. It goes wither upside-down or side-ways and we don't know why.

We're very worried, any suggestions?

Hey Blue :D

Ammonia - 0
Nitrite - 0.1
Nitrate - 30
pH - 7.3

7 lampie tetra, 1 plec, 4 guppies (inc the ill one) and 1 swordtail.

30L biOrb

We've been told it's a swim bladder problem so we're going to buy the swim bladder medication. Should we do a water change before adding the medication and with the filter (as in the carbon bit) we're not too keen on taking it out as last time it made the surface of the water splash around a lot and we don't want to stress any of the other fish out.

Also the yellow guppie has some black thing on it's tail. It's on the very tip and it's swimming normally so we're not worried, just curious as to what it could be.

Thank you :)

Fluffin:

Two items:

If the carbon is less than approximately 8 weeks old IMHO i would take it out (maybe you can replace it with some other media to prevent the splashing [I am not familiar with your filtration device]).
I am saying this as if the carbon is still active it will probably render your meds useless.

I have tried fancy show guppies in my tank and contrary to the literature they have been the least hardy fish that I have owned.
I have abandoned trying to keep, breed or raise them.

TR

http://www.biorb.com/product_details...=6&vlang_id=14

Our filter.

the filter is an undergravel filter for anyone else who asks you. I think this is swim bladder disease, do you soak your flake food for a few minutes before you feed your fish?

The food we feed our fish is tetra prima complete food and it's a garnular food which we grind up and it sinks slowly.

With our filter do we have to take it out? It's just the bubbles are quite rocky for the tank.

you should take the food and place it in a tiny container, the lid to the food is great. Fill the container with water and wait 1-2 minutes, then pour it into the tank, this way there is no air in the fish food and it will lessen the chance of swim bladder disease

He died :(

Immediate water change and we bought this medicine called luquisil general tonic - i this a good idea to use now?