First off, whats the volume of the pond, what fish have you currently got in there?
Sticklebacks are fine in stillwater, and do very well in stillwaters. Only other small shoaling fish would be Minnows which grow to about 4" and then the only other thing after that would be Gudgeon which on avarage get to around 6".
Can a trops mod, please move this into the pond section, cheers
Oh yes i agree, i was sitting down at my local0 (very powerful) stream just today, the speed they were swimming against that powerful flow, would be from one side of the pond to the other in seconds. couldn't see them surviving in a normal pond. I was just mentioning
wow, 4.4 metres. i knew barbel were fast but wow, not that fast.lol
after watching them i did decide to get my net out and have alook at them from the side and see if i could identify them(serious loach keeper here ). i did manage to catch one after ages of trying, i'm stumped, such beautiful markings, no loach i've ever seen. green body, blue stripes, similar shape to pseudogastromyzon fangi. i tried to count the amount of rays but it was getting a bit dark and put him back straight away. also has a yellow gillplate. and at the start of there percoral fin is a white dot.
A word of warning about sticklebacks, especially those taken from the wild, they can be disease carriers. They can also carry an intestinal worm that causes them to swim on the surface to attract fish eating bird, the worm completes the next stage of its life cycle in the bird.
Personally I wouldn't put stickle backs in a pond with ornamental fish but I think they are great in a wild life pond