Tropical Fish Keeping - Aquarium fish care and resources

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mikeportiz 06-23-2012 07:52 PM

help please!?!?!?
okay i have currently a 75 gallon tank with 1 silver tip shark, 1 bala shark, and 1 Senegal (dinosaur) bichir. I use to have a black ghost knife but the bichir killed it..... :( The bichir was like 4 inches. the black ghost was 2 inches. Why did the bichir killed it??? Also i might get a tiger Oscar. a baby one.

Varkolak 06-23-2012 09:04 PM

Oscar will kill everything once its larger then them so make sure you get one small and let your other fish get a head start on growing - they are very aggressive fish, the bicher is a predator so a 2 inch knife fish probably looked like a potential feast to him and knifefish aren't particularly hearty as is

Byron 06-24-2012 06:11 PM

Agree. And I'm afraid there are other issues with the fish that are left. Have a read of the data in the profile for each, under the second tab from the left in the blue bar across the top of the page.

mikeportiz 06-26-2012 02:57 AM

they are all doing good now. In getting 1 more bala and sliver tip so they want be alone.
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Varkolak 06-26-2012 03:43 AM

These fish get huge, your tank wont be able to support them all as adults

mikeportiz 06-26-2012 08:50 PM

It would fit them..... Idk why people say for 1 silver tip u need a 150 gallon tank....... That's a lie. Stick to my question.
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Tazman 06-26-2012 09:20 PM

I think some people are getting confused as to which shark the poster is talking about.

Silver tip sharks are brackish but also are a named saltwater species which unlike their brackish friends get huge!

Average size for a silver tip (brackish variety) is about 9-10" although if given a good clean tank and decorations to suit them, they can get to 14", though this is rare.

They will though at some point and sooner rather than later need to be introduced to a Brackish tank which basically renders all the other fish in the tank with them useless as NONE can survive brackish water.

Full saltwater variety need a MINIMUM 8000 gallon tank as they get to 3m!

Tazman 06-26-2012 09:25 PM

On answer to the original question, it was probably killed as it was seen a meal. Fish that are predators will by nature eat anything they can fit into their mouths, unfortunately this was your Black Ghost Knife.

jaysee 06-26-2012 10:48 PM

2 inches is really small for a BGK. Did you see the bichir kill it or did you find it eating the knife?

mikeportiz 06-27-2012 01:33 AM

I saw the bgk kind of hurt. So i was watching him for a few mins and then i saw the bichir go to it and he put the bgk in his mouth. I stopped it. I got the bgk out and put him in a different tank. He later died.
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