Rainbow shiners


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Hi, 2 days ago I got my first rainbow shiners (Notropis chrosomus) for one of the 275 liter tub, I understand they prefer pebbles on the bottom and a good current. Tried to give them as much but they are still very shy, sticking to the shaded small bit of the bottom of the tub. I understand it is only early days but is there anything else I should do to make them comfy?
 

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Jhn

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Some type of cover, minnows are basically food for everything else. So they will not be comfortable out in the open with nothing to dart and hide near.

If you observe most minnows found in streams, like the rainbow shiners, they are found over gravel bottom in the open. However, they are never too far from the cover of stumps or tree roots, large rocks that they can dart under when spooked.
 
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I agree with JHN, put some cover or a small cave like something in the water. Way to open for them.
 
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Some type of cover, minnows are basically food for everything else. So they will not be comfortable out in the open with nothing to dart and hide near.

If you observe most minnows found in streams, like the rainbow shiners, they are found over gravel bottom in the open. However, they are never too far from the cover of stumps or tree roots, large rocks that they can dart under when spooked.
Thank you for the advice, these fish are still new to Italy (actually not easy to get hold of any). I can move in for them the big water mint plant from the next tub (still uninhabited) and/or put some wood in. Tubs are just next to woods, mainly oak so I can look for old/dry/debarked branches - would the tannins be a problem?
 

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Wow, they are a particularity beautiful fish. I wouldn’t use untreated wood. You could treat what you find (disinfect, boil and soak) to be sure. Perhaps just a ceramic pot on its side will do the job.
Stephen
 
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Thanks, in the mean time I have put in just a hollow brick, lots of holes to hide. Will not put the oak wood in just yet (although it is wood on my property, away from any kind of pollution and actually the tubs are just under one of the oaks, I use the dried up leaves to make a "tea" to tint the water of a number of Southamerican tanks if required)
 
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