figured out why my danios dont shoal

[orandafan12]

I think they are different variants. Some have long fins and some have short ones. Is this the problem?

 

[Bubble_B0y]

the different variants will still school together, but species that look exactly the same will form a tighter school

 

[LyndaB]

My danios never shoaled. They were each too busy in their own little psychotic world to notice each other.

 

[Vircomore]

An important thing to know about fish is that there is a fairly big difference between "shoaling" and "schooling".

"Shoaling" is a social behavior that is exhibited by fish that interact with each other for mating or for fun.

"Schooling" is a defensive behavior where the fish form a group just for protection.

Danios are a "schooling" fish - so if there is nothing in your tank that threatens them, then they have no real reason to school and will instead just prance around doing whatever they want.

 

[CleverBs]

An important thing to know about fish is that there is a fairly big difference between "shoaling" and "schooling".

"Shoaling" is a social behavior that is exhibited by fish that interact with each other for mating or for fun.

"Schooling" is a defensive behavior where the fish form a group just for protection.

Danios are a "schooling" fish - so if there is nothing in your tank that threatens them, then they have no real reason to school and will instead just prance around doing whatever they want.

+1 (15 letters.....)

 

[Bubble_B0y]

that's interesting...

So when fish "school", this is bad - because they feel unsafe?
Hence, when fish are not schooling, this means they are happy?


I've always enjoyed watching fish 'school'. I prefer they do.

 

[Bubble_B0y]

back to topic. I don't think I have ever seen my danios "School".
They spend most of their time chasing each other around the tank - similar to tiger barbs.

 

[orandafan12]

Something bad has happened. One of them doesnt have a back fin what do i do? And i got school so i cant do anything til 3

 

[LyndaB]

Do you mean he's missing his tail?

What size tank is this and how many danios do you have?

 

[orandafan12]

Do you mean he's missing his tail?

What size tank is this and how many danios do you have?

Yes his tail is not there. 29 gallon

 

[LyndaB]

What else is in the tank?

What species and how many of each?

Danios are not your peaceful little fish. That's why I don't keep them anymore. They cause havoc wherever they go.

If it's fin rot, that would mostly be due to water params being poor. What are your readings?