Originally Posted by stevenjohn21
No I'm sorry if I explained wrong. I'm basically wanting to create my krib tank into a shell dwellers biotope. I won't be putting any other fish in there except my kribs. I know kribs come from the Niger delta and I have the tank creating that look, however I'm wanting a new look and thought maybe I can change the biotope to a different region without stressing the fish.
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In this case, I would answer in two ways. First, I suppose the fish wouldn't mind, after all, if they can live with bubbling divers and mermaids, shipwrecks, skeletons, etc, why not rocks and shells? Provided they have something that replicates what they need environmentally, it should work. The dark substrate and plants and branches can be replicated in other ways. But...
Rocks and shells can affect water chemistry, esp shells that raise hardness and pH. This you would not want with kribs.
And, on a strictly personal note, I would never put any fish in an un-natural environment. But that is just me. I do know that creating a reasonably similar environment to that from the fish's habitat does settle all fish better, and to me this makes sense. I prefer being "safe" rather than "risky" with my fish and their health.