Black Fin Sharks,

[Mudfrog]

Expect to pay around $250 - 400 for just the aquarium unless you can find a used setup (which I suggest looking for).

I do not know what type of filter you currently use but I imagine it will not be near enough for a tank of that size.

 

[Mudfrog]

None of my other current fish will survive in brakish conditions will they?

I seem to recall the average FW fish could handle up to around 1.002 or 1.003 of salt, the columbians will need more then that so no your other fish would not survive brackish water.

 

[Ghost_knife]

what about my other fish? they will not survive in those condidtions correct? Gourami Mollie Pleco's Raphiels platties Clown loachs

 

[Ghost_knife]

I seem to recall the average FW fish could handle up to around 1.002 or 1.003 of salt, the columbians will need more then that so no your other fish would not survive brackish water.

I see, would the columbian sharks stand that salinity level without too much stress?

 

[Mudfrog]

The problem with that is you would put all of the fish under stress, rather then just one group of them. 1.002 - 1.003 is really too much for FW (although they might be able to tolerate it) and not enough for Columbian's.

 

[Ghost_knife]

Ok, Is there any pretty fish that also does brakish conditions?

 

[Hrafnkel]

what about my other fish? they will not survive in those condidtions correct? Gourami Mollie Pleco's Raphiels platties Clown loachs

Mollies can live in brackish, but most of the rest (plecs/loaches especially) do very poorly with any salt in the water.

 

[Ghost_knife]

Drat and double drat, what about marine aquariums? can they survive in them?

 

[liv2padl]

this is a classic case of DO SOME RESEARCH BEFORE YOU BUY THE FISH, rather than afterwards when it's often too late to do anything good for the fish.

no this is not a marine fish, it's a BRACKISH WATER fish

 

[Mudfrog]

Violet Gobies are pretty!

Seriously though there are all kinds of different gobies that look great and would make decent tank mates untill the Columbian's get big enough to eat them.