Hubbie wants sharks, i dont/we have 20gal & 55gal/I say get bigger tank and more resources/he is not listening

Answer 1

I'll assume you mean freshwater fish commonly called sharks, things like black fin sharks, bala sharks, redtailed sharks etc.

The smallest of this grouping in general is the rainbow shark and it can get around 7" in a tank. one would be ok in the 55, but only one as they are territorial and will fight.

Bala sharks are best kept in schools of 6 or more. Since they are active swimmers they need plenty of room for their size and since they will easily get to 10"... that's a huge tank.

Colombian sharks aka silver shark, aka black fin shark., iridescent sharks, and similar catfish that are called sharks all easily reach 2' long and require huge tanks as well.

The only real possibility for you at this time is a single redtail or rainbow shark in the 55 gallon.

If on the other hand you are referring to real saltwater sharks, wait until you have at least 2,500 gallons to play with.... 10,000 would be better. Then you could reasonably keep one of the smaller species.

MM

Answer 2

Sometimes people get an idea stuck in their head to do something even when it is wrong and all sources say not to. Sounds like your husband is kinda hardheaded. When people say that you can't put this fish in a small tank, it is only because they care about the welfare of the fish. Ask your husband if it would be OK for you to get a German Shepherd and keep it in the coat closet. Does a puppy fit in a closet? Yes. Will it grow to be an intelligent, well behaved, and long lived dog? No.

Answer 3

Well, here is an article on what happened to a shark who got to big for his tank:
http://www.sharkattackphotos.com/Pet_Sharks.htm

It might not be frightening enough, so try reading this guys opinion for some back up info:
http://www.newyorktails.com/sharks.htm

This is somewhat of a neutral article on sharks and how to care for them--be careful though, cuz it says 50 gallons is enough...
http://www.essortment.com/hobbies/petsharkaquari_syyl.htm
Also informative:
http://www.aquaticcommunity.com/sharkfish/petsharks.php

Good luck!
http://www.essortment.com/hobbies/petsharkaquari_syyl.htm

Answer 4

Well tell him to listen, Because if you put them in too small a tank, It will stunt there growth and shorten there lifespan. Its not fair on the fish,

Answer 5

first of all tell him to sit down and listen. a freshwater aquarium for 55 gallons should only have 6 small fish like guppies. for a salt water tank the rule is 4 per 50 gallons for small fish. would would need about 120 gallon salt water tank. salt water tanks have to be up and running for a minimum 2 weeks before adding fish. you have to balance the ph and salt everyday.you should talk to your local salt water petstore for more information and if you are up to the challange and cost then good on ya..salt water tanks are amazing if done properly.