Coarse Fish

[paudie22]

I had a recent disaster with my tank which resulted in all my fish dying and now i was hoping for something differnt. Close to me is many lakes with all varieties of coarse fish like tench roach carp rudd and bream to mention some and i was wondering would it work if i scooped up some fry from a lake and put them into my tank?

 

[AinsyC]

i am by no means an expert, but i would have said that as long as you had the right water conditions, good enough space, and the legal right to do so, then it would be ok, but im really not sure, so dont take my word for it

 

[ricefish]

I would have thought most course fish get too big for the standard aquarium,and probably won't do too well in the warmer temps and lower oxygen in the water within a normally heated house.I'm not sure how you would stand with releasing them back to the wild when you finish growing them on.

 

[VaegaVic]

I had a recent disaster with my tank which resulted in all my fish dying and now i was hoping for something differnt. Close to me is many lakes with all varieties of coarse fish like tench roach carp rudd and bream to mention some and i was wondering would it work if i scooped up some fry from a lake and put them into my tank?

I wouldn't do it simply for moral reasons.
The poor babies would go from a lake to a small tank, hardly fair imo.
They would probably have a longer life span in the tank if it was continually upgraded to meet their size needs, but still, it's not a life I would like.
Hence why I only buy captive bred fish.

 

[kaivalagi]

Very big tank, 6ft at a minimum I would guess, very good circulation and high currents and mega filtration...these fish poop a lot out!

You may get away with some of the easier smaller species but things like tench, bream and carp would be better off in an outdoor pond if you wanted to keep them.

If you want to go "native" what about minnows, gudgeon, roach and rudd etc? Sticking with the "smaller" fish wouldn't be so bad

Although I emphasise with VaegaVic in terms of sticking with captive bred fish, there are a lot of wild caught fish out there, and also captive bred did start out as wild caught at some point. Maybe if Paudie22 had some success breeding he could re-introduce new fry back into the lake or other fisheries that need them or pass them on to others to start a captive breeding thing going?

 

[nurglespuss]

You dont't need high currents (for the lake based fish you mention) just a high turnover per/hour/ They all get large(ish) and some very large indeed.

There is no difference in taking a fish from captive bred stock/wild stock (other than the obvious) neither is more cruel/less moral than the other (for the health of the fish).

High O2 is a not really needed, most still/slow moving waters get fairly O2 deprived throughout the year and the fish are fairly well adapted for this lifestyle.

But, these fish do like to hide, they need a heavily planted tank, with a sandy (mud is impractical) bottome and some open swimming areas. ideally, the tank should be deep enough so that there is open swimming space above the plants. This is difficult, and I wouldnt really recommend keeping them in anything shallower than 2ft.

this is a useful discussion:
http/www.anglersnet.co.uk/forums/Roach-dace-fish-tanks-t41877.html

 

[garyalty]

i have several koi carp about a year old in my fish tank in the kitchen usual set up filters light oxygen etc