All Fish Swim in Lower Level

[bvaring]

Why all my fish swim near the bottom of the tank?  I do have 2 large fluval hob filters. 
Too much flow or what?  I do not have correct schooling levels and low stock because I don't want to add anything until things are resolved.

Nitrates 10
Size 36 Gallons

I'm sorry if this is already a topic but I could not find it.

Thanks,

Brad

[Tony s]

On 9/18/2024 at 1:55 PM, bvaring said:

Why all my fish swim near the bottom of the tank?

What kinds of fish do you have? Different kinds swim at different levels

[bvaring]

On 9/18/2024 at 1:05 PM, Tony s said:

What kinds of fish do you have? Different kinds swim at different levels

Neons, raspbora, cherry barbs, corys and the larger fish I can't remember.  The larger fish used to be at the top and neons and others at mid level and of course the corys on the bottom.  I just wonder if there is something wrong.  Attached is a picture of the larger fish that now spend time breaking up and annoying at the others at the bottom but they are not aggressive.

[Beach Cruiser]

If they are new it's possible they're just acclimating.

If not, you can toss in a few floating plants (i like red root floaters for their manageable size & nitrate control, other types might work better with HOBs) for cover. 

Edited yesterday at 06:50 PM by Beach Cruiser

[Tony s]

On 9/18/2024 at 1:55 PM, bvaring said:

Too much flow or what

Did you add a filter or change flow patterns? If not, it's not a flow issue. Is it possible your ammonia spiked? I've seen fish hide from that before