07-17-2008, 03:19 AM
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Looking for a killer - tiny and efficient
I am planning a new tank in which its inhabitants should feel well enough to get it on right in there. My problem is that this tank will be focused on a healthy ecosystem rather than fish, so I can absolutely not afford any fry to grow up. I don't kill fish or dispose of them in any other ways than the natural ones. So I guess my question is: are there any small but capable predators out there that prey on baby fish but not on small grown ups, and thrive in soft, slightly acidic water? The tank is only 24"/15gal, so size is important.
Any input will be greatly appreciated.