Clownfish Fry Schooling in Corner?

[MTracyRN]

Hello all, I’m new to the clownfish breeding scene and this is my first attempt at raising the fry. This group is on day 18 post hatch and have been moved to a 20g grow out tank since they are no longer on rotifers. Should I be worried that they are all schooling in the corner of the tank close to the surface? 10-15 of them free swim around the tank but the other 50-60 of them are always huddled up in this top corner of the tank. Makes me worry they aren’t eating enough because only some of them look like they’re getting food when it’s added. Is this normal behavior for them? At first I thought maybe it was the light but under no light, lower light, and full light it is all the same response.

 

[Sophie"s mom]

I am only guessing here, but hanging out in a corner is very normal for adult clowns, so why wouldn't babies do the same?

 

[GARRIGA]

I'd go find a corner where I in some strange place and genetically engineered to go swim the open expanse called the ocean

 

[MTracyRN]

I am only guessing here, but hanging out in a corner is very normal for adult clowns, so why wouldn't babies do the same?

This was my initial thought as I’ve had some clowns do some weird stuff, just wasn’t sure

 

[manzoherz]

Good morning! With my latest hatch of clownfish I've had a lot more success so far with around 40 alive at day 15 and everyone developing nice striping. I'm going to now move them to a grow out tank as the ammonia control is too challenging in the fry tank. But my concern is, that despite trying to feed them TDO-A and then TDO-B1 and whilst some of them nibble at it, the majority just ignore it in the water. I've now stopped any rotifers and have two sponge filters in the fry tank. If I'm not seeing them eat the powder, is it too risky to move them into a grow out tank with no rotifers, or will they very quickly adapt to the powder once rotifers are no longer all around them? Mine are also hanging out in one corner of the tank!

 

[MTracyRN]

Good morning! With my latest hatch of clownfish I've had a lot more success so far with around 40 alive at day 15 and everyone developing nice striping. I'm going to now move them to a grow out tank as the ammonia control is too challenging in the fry tank. But my concern is, that despite trying to feed them TDO-A and then TDO-B1 and whilst some of them nibble at it, the majority just ignore it in the water. I've now stopped any rotifers and have two sponge filters in the fry tank. If I'm not seeing them eat the powder, is it too risky to move them into a grow out tank with no rotifers, or will they very quickly adapt to the powder once rotifers are no longer all around them? Mine are also hanging out in one corner of the tank!

If anything I would try and supplement with frozen or live baby brine, they should take to the TDO after a while. I would also Try and premix the TDO with a little water so it goes into the water column and doesn’t just sit on top of the water. I had to do that for the smaller TDO powders