Tank Overstocked?

[woodcatl493]

I have a 30 gallon tank with no plants. My fish:
3 Cory Catfish
2 Goldfish
1 Gourami
1 Pleco (~5 Inches)

I think it's overstocking because I did a water change about a day ago and here are the results:
Ammonia - 0 PPM
Nitrite - 0 PPM
Nitrate: 80-100 PPM (Can't tell, posting a picture of the results)


I just think the nitrates are too high after a water change to be good for the fish. They show no signs of illness EXCEPT for ONLY the Goldfish who have red spots all over their bodies, and the spots have been there for a few months.

 

[Reygan2]

The goldfish really do not belong in that tank. Can you post a pic of the red spots?

 

[nirbhao]

Are you opposed to plants? They would absorb some of those nitrates.

 

[woodcatl493]

Oh, of course not! I'm setting up a 55 gallon planted tank next summer. They would? I didnt know that.

 

[NickNaylor]

Oh, of course not! I'm setting up a 55 gallon planted tank next summer. They would? I didnt know that.

Because of how dirty goldfish are, most people recommend much higher volume for them than other fish. That's probably your problem.

 

[woodcatl493]

Yeah. I know. It's just everyone gives me their Goldfish and I want to get rid of these. Can I sell them?

 

[NickNaylor]

Yeah. I know. It's just everyone gives me their Goldfish and I want to get rid of these. Can I sell them?

You could try - there are a few online sites that essentially facilitate this. Another option might be to go to your LFS and see if they might be interested. My LFS offers store credit for "trade-ins" of fish.

 

[woodcatl493]

What is an LFS?

 

[NickNaylor]

What is an LFS?

LFS = local fish store

 

[woodcatl493]

I see. I'll have to find out if I can do that.

 

[GuppyGuy333]

From my understanding goldfish are cold water fish.....and are not meant to be put into a tropical fish community.

Also from my personal experience....the more corys you have the more interesting behavior I got from them. I started off with 2 and then went to six and they started schooling slightly.

What kind of pleco do you have because the common plecos get huge! and though they suck on glass when they are younger i have heard they become aggressive poop machines as they get older.

 

[woodcatl493]

Yeah, you're right about Goldfish being cold water fish. I just have no where to put them, except to euthanize them. They have (only the Goldfish) have red spots all over themselves that have been there for about a year now, and nothing has gone away or progressed. I keep on forgetting to take a picture, but I'll get to it tomorrow.

Cool, Cory Catfish schooling! I think my three like to stick together but it's mostly (probably, I can't tell) the Mom and the baby sticking together and Dad goes and does his own thing.

I have a Plecostomus and he's about five inches long. With these Goldfish too. He probably is a huge poop machine because some of those things look like mini snakes. ?

 

[GuppyGuy333]

yeah cory catfish are known to school pretty well. i've seen youtube videos of them in the wild and they school in the hundreds! it is definitely worth looking up in my opinion.

and sorry about your goldfish situation....it does not sound enviable. but i would definitely try asking a fish store if you can bring them in (if you live far away from one....might try calling first)

 

[woodcatl493]

Alright. Cool.

Man, that's so cool to watch, a massive group of Cory Catfish doing their own thing! Never seen that before!

 

[woodcatl493]

Okay, here's a picture of the Goldfish.
Wow, you don't realize how active these fish are until you try to take a picture of them. [emoji35]



The bottom picture is the best quality. Now, after some time, there are a lot less of the spots. And after looking at one thread,they look like lesions to me. But I'm probably wrong. ?

 

[fiddlercrab]

Dude. Goldfish and tropical fish don't mix.

 

[woodcatl493]

I know. It's just I have no where to put them. I can't sell them to a pet store because of those spots, and I can't give them to someone because I don't have anyone to give them to.

And I can't set up my 55 gallon this year because of school, so no other tanks to put them in...

My only option would be/is to euthanize them.

 

[fiddlercrab]

How long were the goldfish with the tropical fish?

 

[woodcatl493]

About 1.5~2 years now. I know it's way too much.

 

[fiddlercrab]

Does anyone know if you can keep shiners in a tropical tank? Cuz I want to try it.