75 Gallon Tank Adding more corydoras to my stocking?

[Maya Boone]

My fairly well-planted 75gal has been running for about 6 months, and I’m considering upping my school of corydoras either by adding more of the same type, or getting some of a different species. Current stocking:

An obscene number of cherry shrimp
14 rummynose tetras
9 celestial pearl danios (a remnant from a smaller tank I tore down, they don’t know what to do with all the space lol)
7 African banded barbs
3 honey gouramis
1 bristlenose pleco
11 false Julii / three-line corydoras (C. trilineatus)

I don’t see the corydoras a lot except at night, and even then they are rather shy. They have lots of overhead cover, don’t seem stressed (my other fish aren’t aggressive, they chase members of their own species a bit but couldn’t care less about the corys), and are eating well, I just wish they came out more and I wonder if adding more would help.

Thoughts or recommendations on how many would be a good number?

 

[A201]

Pretty tank. Yeah, adding more Corydoras will likely up the activity level, resulting in more sightings.

 

[3Fishnight]

My fairly well-planted 75gal has been running for about 6 months, and I’m considering upping my school of corydoras either by adding more of the same type, or getting some of a different species.

Wondering how you went about raising your light.

 

[Maya Boone]

Wondering how you went about raising your light.

My dad helped me do it! It’s just some pieces of conduit stuck into a couple of 2x4s which are then screwed into the framework of the stand. An elbow joint at the top to attach the horizontal pieces and then the light is just zip tied to that. Pretty low budget lol! but I’m happy with how it looks.

 

[CryoraptorA303]

I would add more false juliis. 11 isn't a very large group for a 75 gallon. They'll feel safer in such a big tank with a larger group, especially with the honey gouramis and the BN pleco roaming around competing with them for food (not that these two are in any way incompatible with cories given enough food).

 

[Maya Boone]

I would add more false juliis. 11 isn't a very large group for a 75 gallon. They'll feel safer in such a big tank with a larger group, especially with the honey gouramis and the BN pleco roaming around competing with them for food (not that these two are in any way incompatible with cories given enough food).

Thanks! With the rest of my current stocking as is, how many do you think would be a good sized school for a tank this size? I’m thinking of potentially adding a few more small top-dwelling fish as well down the road, but haven’t made any final decision on that—maybe some type of rasbora or more CPDs. I don’t want to overstock but things seem stable so far.

 

[BigDogs]

Your planted aquarium looks great

I would start out with 4 of them then go from there, you don’t want to start with to many at first.
You must take into account all the plants and things you have inside the aquarium that takes up room also.

 

[CryoraptorA303]

Thanks! With the rest of my current stocking as is, how many do you think would be a good sized school for a tank this size? I’m thinking of potentially adding a few more small top-dwelling fish as well down the road, but haven’t made any final decision on that—maybe some type of rasbora or more CPDs. I don’t want to overstock but things seem stable so far.

I would say at least 20.

It would be very hard to overstock a tank this large with small fish, assuming filtration is up to standard.

 

[Maya Boone]

I would say at least 20.

It would be very hard to overstock a tank this large with small fish, assuming filtration is up to standard.

I have a AC110 on one end and a Marineland Penguin Pro 375 on the back, it gives a great amount of surface agitation and makes for a good circular current both front to back and lengthwise. Lowkey would have gone for 2 of the AC110s just because of how easy they are to clean and the fact that I don’t love the filter “cartridges” but I already had the Marineland filter, so it works lol.

 

[CryoraptorA303]

I have a AC110 on one end and a Marineland Penguin Pro 375 on the back, it gives a great amount of surface agitation and makes for a good circular current both front to back and lengthwise. Lowkey would have gone for 2 of the AC110s just because of how easy they are to clean and the fact that I don’t love the filter “cartridges” but I already had the Marineland filter, so it works lol.

With that filtration you should be able to have as many cories as you'd like.

 

[BigDogs]

No mater what size aquarium you have You are still limited to the number of fish and bottom dwellers you can have in a aquarium
Too much aquatic live in a aquarium is called over stocking

 

[CryoraptorA303]

No mater what size aquarium you have You are still limited to the number of fish and bottom dwellers you can have in a aquarium
Too much aquatic live in a aquarium is called over stocking

I'm sure OP is aware of that.

However a tank this large should be able to support a vast number of small fish.

 

[BigDogs]

Not everyone is aware of this information

 

[Maya Boone]

Not everyone is aware of this information

Oh I’m definitely aware, I’ve been in the hobby for 10 years and you’ll notice that earlier I said “I don’t want to overstock but things seem stable so far.” Appreciate the concern though! I have historically erred on the side of understocking, so just still trying to find the right balance for this tank.

 

[BigDogs]

I been breeding fish, plecos and shrimp for over 42 years
Each year I learn new things and new techniques from
Other people who does the same thing I do
The love of keeping aquatic life seems to be shrinking
Some what in my are of Tecumseh MI