Red Claw Crab - Crowned Betta - Frog?

Question

I heard the crab and the betta will work together.
but the frog and the crab could be a problem.
I know what they all need and can work with.
but what pet should i get to replace the frog?

Answer 1

NO, NO, NO!

Crabs eat fish. Slow moving fish like bettas are particularly in danger from them.

Same with frogs.

Bettas do best alone. Those fins are just irresistable to other critters.

If you're talking about an african dwarf frog, bettas eat them. They harass them and eat limbs until they die.

So, basically, those 3 shouldn't be kept together.

Frogs can be kept with other, less agressive fish.

Crabs are kept alone or with bigger, faster fish that you don't mind get chewed on or eaten if the crab gets lucky.

P.S.
All of these animals have widely different needs.
It's your responsibility to research how to keep them healthy and happy.

Answer 2

The crab won't be suitable for either - they need to have some salt in their water, and land area inside the tank (making less room for the fish). Plus, the crab will eat fish or a frog if given the chance (especially at night!). The betta and frog might work together.

All you would need to have is at least a 5 gallon tank with gravel and decorations, a heater, a small filter, and food. The betta should have pellets for most of it's diet, and the frogs love frozen bloodworms - the betta will eat these too! A tank like this one: http://www.walmart.com/catalog/product.do?product_id=3635107 comes with a filter and light, so you would still need to get gravel, the heater, and their food.

Answer 3

I have had Betas, crabs and frogs in various habitats and combinations over 22 years. Betas like to be alone the best. I once put my Beta in with four small goldfish in a 29 gal aquarium. It worked for awhile but there was to much current in the tank for the beta. Betas don't seem to like moving water, Moving anything for that matter. I tried getting a frog to keep the Beta company for a while. Nope. Beta started to eat the frogs toes and keep him from getting enough air by guard the surface. Now they are in separate bowls next to each other on a stand. Crabs can be very out-going and persistent. I've had crabs in with fancy gold fish (very bad), regular goldfish (bad), beta (not good either). My Betas have tended to stay near the top of the bowl. But since the crab likes (needs) to be out of the water at times he will climb up there and he will find a way to snack on Beta fins. Crabs can be very patient. If you want a pretty Beta and a happy frog and a happy crab don't put them together. Together they will eventually pick each other apart. You'll end up with a fat crab.