Pink and green cucumber, Pentacta anceps, won'ts open

[dendro982]

What are requirements of this cucumber to the flow, tank material - anything other than presence of fine food particles and high water quality?
It did well in big FOWLR glass tank for a 3 days, but in more safe small acrylic tank it just sit at the middle of the wall and don't responds on Chroma-Plex, already night and day. Advice, ideas? Thanks.

 

[WALKINGTHUNDER]

I had a pink and green cuke. I started him off in a 5 gal by him self. He moved all over there was very little water movement in that tank filter only. Then after about 2 months i took him out and put him in my 45 gal max water flow lots of movement from the water. He stayed put in one spot. Moveing in a circle but staying were i put him. Dont know if less water movement makes them move more or not but it did in my case.

 

[dendro982]

Thanks for the reply! It opened next day, after HOB power filter flow was directed right on the wall above it. It seems that they require high flow.

 

[npirate]

They can move, they will find a spot they like. Mine sits in front on my Tunze. It loves Kent Marine ZooMax. I use the concentrate and I can watch it collect food with it's antenna and eat it.

SUPER-SIZED IMAGE

 

[dendro982]

Thanks! Incredible details on the photo - mine is much weaker.
Here it's licking fingers:

View of 6g hexagon filter feeders tank, Christmas tree rock at front:

I have only Kent's Zoo-Plex and Chroma-Plex, but cucumber accepts them too. Before that I fed only smallest particles as Micro-Vert. Who could know from description that filter feeders can eat as large particles as zooplankton?