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I was planning on getting some columbian sharks however they would require more space than I could give them. I love their look and how active they are and I like that they are preditory. Does anyone have any sugestions for a fish like columbian sharks but only requires about a 3'x2'x2' tank and...

I plan on setting up a 100 gallon tank for several columbian sharks, how much salt will I need?

I plan on getting a pair of columbian sharks which I hear are catfish what are the minimum/ideal dimensions/gallons for a tank? will regular gravel do, or do they need sand? i hear they need brakish water, so how much salt do they need, depending on the size of the tank and the age of the fish?

Incase you were wondering, I haven't bought a tank yet what are the minimum/ideal dimensions/gallons for a tank containing a pair of columbian sharks?

my dad is going to help me out with the fish,he actually built a tank that was 8 feet long. so I can alsways upgrade tanks later, though I was told that they grow only ss large as their tank will allow. so how much salt do they need? and do they need sand or grtavel?

hi i want to start my first fish tank (not counting all the fish I grew up with) I want a pair of columbian sharks I plan on buying at tank with about 100 gallons will regular gravel do? or do they need sand? I hear these are a brackish fish, so how much salt will they need? will this amount...