Fish

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how to sex koi fish is easier than you might think

How to Sex Koi Fish

Koi fish make a vibrant addition to almost any extra-large freshwater indoor aquarium or outdoor pond. If you’re an aquarist and plan to breed or raise this ornamental species, you may be wondering how to tell the difference between the males and the females. The answer is… One way to sex koi fish is to …

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a bumblebee goby

Bumblebee Goby Tankmates

Brachygobius or ‘bumblebee gobies’ (as they’re known in the aquarist world) are a species of bottom- dwelling fish with black and yellow markings reminiscent of a bumblebee. If you’d like to try your hand at a brackish tank, bumblebee gobies are a great choice. But what types of fish make good tankmates for this species? …

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