Bunch of fish stocking problems and hungry corydoras issues

splasheo

New Member
Member
Messages
15
Hello! I'm sorry for all these questions, but I'm just trying to figure out how to get myself out of this pickle.

Currently, I have 3 tanks, a standered, moderatly planted 75g, lightly-moderatly planted 20g long, and very heavily planted 5g cube
In the 75g, I have 4 medium angelfish, 6 serpae tetras, and 2 german rams, and 8 bandit corydoras
In the 20g, I have 36 cardinal tetras (~6 full growns, the rest very small), 10 harlequin rasboras, and a very peaceful old betta
In the 5g, I have nothing

Now the stocking problem comes with the 20g, I feel its severely overstocked. I was a little overzealous with the cardinals and I got too many, but the parameters seem fine, its just a little overcrowded, I could try to move them to the 75g, but they are small enough to get eaten by the angelfish, can they outrun them? Do I risk it? Do I wait until they get big enough? The betta's always hiding, and i feel the tank would look so much better with a centerpeice fish/fishes, but can the tank hold more fish? I can do water chances twice a week.

The 75g seems very empty, theres just a bunch of empty space inside, and I'd love to get more fish for it, but I dont know what. I'm thinking another centerpeice like keyhole chiclids, and then some more tetras, like congos, or rummynose. Is there any problems with this stocking? But the thing is my angelfish are greedy bastards, and I never see the corydoras eat. If i put food at the front of the tank (the tanks heavily planted at the back, and sand at the front), the angelfish steal it all. And if i put food in the back of the tank, I can never see if the corys eat it or not, or if the tetras steal it from them. The corys dont seem to be active, they seem to be hungry and they dont have that much energy. Do I just keep putting their sinking wafers in the back? Could the problem be I'm not feeding enough, im giving them 5-7 hikari wafers per day, and they're like 2/3 of an inch long.

The 5g seems to be doing fine, should I move the betta back in here so theres more room in the 20g? Or should i just get shrimp, or any other suggestions?

Thank you all so much for your time - again, so sorry for all the questions, and please do give me any advice.

All the tanks are cycled, been up for a while, the 75g is at 79˚, the other 2 are 78˚ All are heavily filtered, ph around 6.8-7
Attached is a photo of the 20g, I kinda don't have my phone currently, so I cant take more photos sorry.
 

Attachments

  • Screenshot 2025-04-27 at 7.47.54 PM.png
    Screenshot 2025-04-27 at 7.47.54 PM.png
    2.9 MB · Views: 10

Advertisement
Ditch the wafers. They are too easy to steal away from the Corydoras.
Feed small grain sinking pellets. New Life Spectrum, Omega One and I think Northfin make quality sinking pellets.

Angel fish would likely pick off a large percentage of the juvenile Cardinals.

Your Betta should be fine in the five gallon tank.

There are so many stocking possibilities regarding the 75 gallon. You might need to narrow down your preferences before I could reasonably comment.

Btw, nice looking tank.
 
Can you get another tank for half of the cardinals? That would solve one of your problems. As yes, those very small fish will be tempting to the angels.

I suggest you get a pipe and attach it to the corner of the tank with superglue. then you can put the corydoras food in it and the angels wont see it. I also suggest that you toss the hikari food, it is mostly junk fillers even if they do eat it, it is not nutritious,. Consider Ultrafresh veggie shrimp pie, and Repashy gel food. Or what A2o1 said, a sinking pellet would work, I feed my fish Northfin bug pro and it sinks and has quality ingredients.

I dont think that you should put the beta in solitary confinement after he proved to be social.
 
Did you consider moving the harlequins to the 75? Since their body shape is deeper than a cardinal's, the angelfish might not be able to eat them as long as they're not really young harlequins.
 
Advertisement



Advertisement








Advertisement




Back
Top Bottom