Few odd Questions Any help appreciated (pond/water couorse building/sturgeon) (UK)

All I know is, 1,000 gallons is too small for Koi...
Kirsten
"Lostin1999" wrote in message
...
Hi all..

Newbie posting here for first time (please be gentle)

First off, I've just built a 1000 Gallon pond (not bad considering my
garden
is so small) but I want to have a water feature flowing into it. However
all the ready made Water courses are wrong shape/too big/small, so I got
to
thinking about expanding foam and liner, making my own... Has anyone done
this before?? Will it be better to paint the expanding foam with a rubber
compound pond sealant paint? Or cover with a liner? Its not gonna be too
huge and will be well supported.. But the fence behind the pond is VERY
boring to look at.

This pond WILL be populated with fish (koi, Shibunkins (sp) and Sturgeon
amongst possible other additions.. (blue orfe seem to be a very likely
addition).

Now to another Question.. I have some sturgeon (3 off) and the other
evening I went out to the garden about 11 pm (pitch dark) and the sturgeon
were sticking there whole heads out of the water and making a grunting
sound?? This has me worried (they are 2' long each) and are at present
in
an holding tank (old bath tub) while the pond is sorted. (bath tub having
a
3000 gallon filtration system running in it to make sure water stays clean
and clear.(including a 15 watt UV clarifier))

pond will be ready for population (excluding the "feature") in a week but
the feature will be a removable item so can be made separately from the
pond!

sorry for the long post, but thought the details MAY be relevant

Any help and advice offered will be most helpful..

Lost