albino cory after water change

[Morodder]

after water change albino cories quiy moving and kind of leans to one side. you make them keep moving for a little while and they are ok. i have been leaving water to set in buckets fo 24hrs with heaters and put a little water conditioner in it. but that doesnt help. is there something else i can do? or is it normal

 

[Ptera]

What is the pH in the tank? and what is the pH of the new water?
Also, kH/gH of each?

 

[Aiken Drum]

My panda corys all lie still on the bottom when i add new water during water changes. 10 - 15 seconds after i stop pouring they all simultaneously spring back into action
I've always put it down to a slight difference of temperature or maybe its a fright reaction?

Apart from this though they are healthy, look happy, breed OK etc, so i have no concerns.

 

[Ptera]

My threestripe corys carry on doing whatever they were doing before. Maybe this is just a difference in species or the individual fishes.

In order to disturb the water less though, I do pour the new water either over a large decoration or through a colander.

 

[Aiken Drum]

In order to disturb the water less though, I do pour the new water either over a large decoration or through a colander.

I use a sheet of bubble wrap laid on the surface of the water. Works a treat.

 

[Ptera]

I use a sheet of bubble wrap laid on the surface of the water. Works a treat.

Clever, I may try this..