Crystal red climbing over the IOS filter

[garythay]

Is there any way to prevent CRS from climbing over the IOS filter?

[murinus]

try covering the IOS inlet area with a fine mesh

[pioneer]

can try using some net

[garythay]

I am using tiny hole stainless steel mesh but CRS still manage to climb over

[vinz]

Because they are able to survive out of the water for short periods, and they CAN climb the mesh.

Don't just erect a mesh wall at the overflow. Cover the whole top of the overflow.

|                  |
|~~~~~~~~~~~~~XXXXX|
|             X|   |
|              |   |
|              |   |
|              |   |
|              |   |
|              |   |
+--------------+---+

~~~ = water surface
XXX = mesh

[SmallFish]

Or erect it 1 ~ 2 inches above water level ?

[vinz]

I've seen yamatos climb higher than that. I'm not sure what a CRS is capable of though.

That 1 or 2 inches must not exceed the lip of the tank, else there's a chance the CRS will end up outside the tank.

[vinz]

Hmmm... how about mesh like below? If you are using steel mesh, you can bend it. But you need to make sure the horizontal portion is high enough and long enough that they cannot climb it upside down. Alternatively, cover the horizontal portion with smooth plastic (cut from disposable food containers, poke small holes and secure with fishing line) that they cannot get a grip on.

In my previous suggestion, the worry is that shrimps sitting on the top of the mesh can easily jump over the lip of the tank.

|           XXXX   |
|              X   |
|~~~~~~~~~~~~~~X   |
|              |   |
|              |   |
|              |   |
|              |   |
|              |   |
|              |   |
+--------------+---+

~~~ = water surface
XXX = mesh

[garythay]

Thanks for the good suggestion and diagram.

[eddyq]

Why would shrimps want to climb out of water? Trying to escape bad water?
I wonder why. Pls enlighten me.

[garythay]

Not all the shrimps but few of them. Might be CRS is very adventurous.