fiddler crab or crayfish?

[allaboutfish]

which would you get and how do you care for a fiddler crab (since theyre brackish)?

 

[fadetoblack06]

I got a blue cray fish, it looks pretty cool and they don't need anywhere to come out of the water, they can just stay in. I would only get one though, they become quite agressive towards each other after a little while.

 

[alLexX]

id get a cray,imo there more interesting(ive kept both),and i never could get crabs to last,even though i ahd brackish water,a beach,etc

 

[allaboutfish]

this would have to be half land half water and the crayfish would be native

 

[alLexX]

if you want to keep much else,neither would be a great choice.most fish dont like brackish water,and crays eat fish.

 

[allaboutfish]

no fish bc there wouldnt be much water. has anyone had one? are the interesting? how do you measure brackish water? how many could i have in a 20 gallon long?

 

[alLexX]

there interesting if you can keep them alive,when i was a noob,id just take enough salt to make 1 gallon of sw,and use1/5 of it to make a gallon of brackish,but you should use a refractometer or the other thing(dont remember name)

 

[allaboutfish]

what would be the right levels?

 

[xxwolfpackof1xx]

bw is usually a sg of 1.005-1.010

 

[jetajockey]

just as a heads up, I was at the river today, a few miles upriver from the bay, and there was a large colony of fiddler crabs there, so they can apparently tolerate full fresh, at least these could.

 

[allaboutfish]

i wonder if they can have freshwater, but most die bc they dont have any land or something.

 

[allaboutfish]

oh i just read that they have freshwater fiddlers and brackish fiddlers but in petstores theyre brackish. anybody have any idea how many i could keep in a 20 gallon long tank? and if they can breed in the aquarium and how to do it?

 

[allaboutfish]

should i get sand or peebles for a substrate for my fiddlers? im thinking pebbles from a local stream that look really cool.

 

[alLexX]

pretty sure they like sand so they can burrow,but if you supply plenty of caves,sand isnt neccessary