Should I put a crab creature in my fishbowl?

Question

I recently added underwater plants, hoping to keep the water quality better between cleanings. Would a little monster help to clean up the tank or would it just upset the balance? If it's good to add one, what type is best?

Gahhh...

I really like the fishbowl. I'd like to make it as good as possible for as long as possible. I don't want to switch to a rectangular aquarium.

I saw my fish eating air bubbles on the surface, which told me that the water quality is too bad. So I added the plants.

It's clearer, and he seems to be gulping air less frequently. (Maybe I should remove one of the plants.)

Do you think I should get a larger bowl and add an undergravel filter?

(Bahh...of course you do. But it's still short of an outside filter.)

I hope to make this fishbowl only a temporary home for fish. I just don't want to kill any.

Bang, bang, bang...

I'm going to look for a ten gallon fishbowl. That's 80 pounds of water, and a lot of water to change each week. I'll probably have to build custom "stems" for the undergravel filter to make it work in such a big bowl.

The question still remains: Should I add a crab creature to that bowl?

I'm thinking no at this point.

It's a fancy goldfish, by the way; but I don't think the type of fish matters so much, because I plan to get a new fish when this one grows too big (if it lives).

If it shows signs of getting sick, I'll set it free right away.

Bahhhh...

That's irresponsible. I know it.

People have kept goldfish alive in fishbowls, though, haven't they? It should be okay until it grows big.

I'll definitely not try a fishbowl again if this fish dies.

Answer 1

Any type of aquatic crab will only add to your bioload - meaning it needs to eat and poop too. Crabs also need a way to get completely out of their water, and for fiddlers and red clawed crabs, they need to have some salt in the water - depending on the amount used, your plants may suffer.

The only way to really keep a tank clean is by doing 20-230% weekly water changes, not overstocking (putting in too many fish), and not overfeeding (no more than the fish will eat in 2-3 minutes, twice a day).

Answer 2

I think the question is this: fish BOWL?
There are freshwater underwater crabs and they are scavengers. But...if you have a bowl, I'm assuming you have no filter or heater. Adding plants to a bowl will take out more of the oxygen that your fish really need. What size bowl do you have and what type of aquatic life are in there? Do you have a filter or a heater?
Here is one of the main problems with "bowls". A goldfish needs at least 10 gallons per fish because of the amount of waste they put into the water. A betta is a tropical fish that needs at least 1 gallon of water AND a heater. All fish need a filter.
Or...the water quality suffers. And of course, the fish, crabs, frogs, etc..will get sick and die.

Answer 3

DON'T GET SNAILS!!! I got one snail, then it reproduced and now I have about 40 little snails in my fish tank. I can't even imagine what they would do to a fish bowl. I have a 10 gallon tank. I also have a small crab in my tank and I have 5 mollies. The people at the pet store told me that because I have a 10 gallon, I should only have 10 inches of fish in it. You have a bowl which means you should have a lot less than that.

Answer 4

there'll be many MOUNTAIN CRAB in next 3 month. Crab may even sings proper Of the international that element ! Mountain crab will " seem drown ' those crab contained in the sea, because there imagine there on the intense side. is a dream for Sea crab to bypass to proper of the international. crab love your !

Answer 5

He is likely to catch and eat your fish. Put a small catfish in there, they eat the debris that sinks to the bottom and sticks to the sides of the tank.

Answer 6

A crab could eat the fish!(They have claws)

Answer 7

Barb R is correct.

Answer 8

get a ghost shrimp or snails. they help with cleaning the water.

Answer 9

get a catfish

Answer 10

idk