My Guppy Is Acting Strange

[Glamzar]

Sometime last night one of my guppies had died and I could tell it upset my other guppy. The nest time I checked on him, he was spending more time closer to the top of the tank and his tail seemed more torn then it had which I thought the goldfish probably did. So I moved my guppy to a small tank away from the goldfish. But he is swimming right at the top of the water. I can't tell if he is gasping or not, the water is quite a bit colder than the previous tank he was in but its warmer now but he hasn't settled. I read that there might not be enough oxygen or he might have an infection but I have know idea to tell either.

 

[Crossfire]

Sometime last night one of my guppies had died and I could tell it upset my other guppy. The nest time I checked on him, he was spending more time closer to the top of the tank and his tail seemed more torn then it had which I thought the goldfish probably did. So I moved my guppy to a small tank away from the goldfish. But he is swimming right at the top of the water. I can't tell if he is gasping or not, the water is quite a bit colder than the previous tank he was in but its warmer now but he hasn't settled. I read that there might not be enough oxygen or he might have an infection but I have know idea to tell either.

Is the tank cycled?
How big is the original tank?
How big is the guppy's current tank?

 

[Glamzar]

The original tank id five gallons I believe and the new tank is much smaller, just a few cups. There is no filter or anything.

 

[Tuxyu3]

The original tank id five gallons I believe and the new tank is much smaller, just a few cups. There is no filter or anything.

Goldfish can not live in 5 gallons of water, they they around six times that amount. If there is no filter the fish will be poisoned by the waste they produce themselves(ammonia). You need tofind a new home for the goldfish and guppy, either return them to a shop or arrange more suitable living conditions yourself. In the short term do an extremely large water change (around 90%, as much as the fish can swim upright in when the water is removed) and always make sure to de-chlorify the water using conditioner.
If you are serious about keeping fish (if you are not, don't keep them) you need to do a lot of research in how to properly care for them. The beginners section in this forum would be a good place to start.

 

[Glamzar]

Its a very large tank that my goldfish is in and I am not a good judge of volume it could be ten. I just moved my guppy a few hours ago he hasn't produced any waste yet. And I am not a bad fishy parent I had many fish before but the goldfish I have now was a victim of fish pong that I rescued and my guppy's best friend just died and has just been moved into a new tank. There are onside problems that have nothing to do with his strange behavior, also I concluded he has shimmies as well.

 

[Tuxyu3]

Any chance of either a picture or the measurements of the tanks height, width and length to confirm a size please?

 

[Glamzar]

OK then, never mind he is magically cured. Thank you for the help though and he still has shimmies but I working on that. I checked him two seconds ago and he was at his normal water level but not five minutes he was all the way at the top and had been since I moved him. Very strange.

 

[PrairieSunflower]

Volume calculator, http/www.aquaticcommunity.com/converter/volume-calculator.php

so you can check to see if you keep them in the right sized tanks.

 

[Nightstar99]

Sometime last night one of my guppies had died and I could tell it upset my other guppy. The nest time I checked on him, he was spending more time closer to the top of the tank and his tail seemed more torn then it had which I thought the goldfish probably did. So I moved my guppy to a small tank away from the goldfish. But he is swimming right at the top of the water. I can't tell if he is gasping or not, the water is quite a bit colder than the previous tank he was in but its warmer now but he hasn't settled. I read that there might not be enough oxygen or he might have an infection but I have know idea to tell either.

Guppies are tropical fish, goldfish are cold water. They shouldnt really be in the same tank as far as I know.

 

[Glamzar]

The water is a little more then room temperature in the big tank. My guppy has been moved back into it.