Blue crayfish

[abrahamavelar]

im guessing they will do ok with out one but ive seen them last long with one

 

[FreshwaterTropical]

Ok that's cool.

 

[siva]

Do crayfish need a heater?

NO. The warmer the water, the faster they molt, the shorter their lifespan.

 

[siva]

yes!!!!! just like any other tropical fish

Inverts are not tropical fish. Many inverts (including some of the popular snails, shrimp, and cray) do not require, and in fact do better without, a heater.

 

[abrahamavelar]

dont get me wrong but when they molt doesnt mean that they r getting a bigger shell thing cuz they outgrew their shield

 

[siva]

That is precisely what molting is.

 

[abrahamavelar]

ohh ok i thought it was good 4 them

 

[siva]

..well they have to do it..I'm not saying they shouldn't molt. I'm saying heat speeds up their molting/lifespan.

Crays generally do not come from very warm waters. We aren't exactly sure the species of cray this is, but most crays thrive at 55-75F and do not require a heater. They actually won't live as long with one.

 

[abrahamavelar]

oh ok thanks i didnt know that

 

[siva]

No problem. Many of the ornamental shrimp in the hobby do great at room temp as well.

 

[abrahamavelar]

do they need an airstone???????????

 

[siva]

They definitely appreciate well oxygenated water. Even though my blue crays tank has plenty of surface agitation from the filter, I still run a big bubble wand for him.

 

[abrahamavelar]

oh ok i dont really use any air pumps in my tanks i only have the airstone due that im running diy co2 and the only time i did its when i was a kid in my das tank and it was long long long time ago atleast 113 years

 

[siva]

I don't currently run airstone with my dwarf crays so I wouldn't say it's absolutely necessary as long as there is plenty of agitation.

 

[abrahamavelar]

oh ok i dont really use any air pumps in my tanks i only have the airstone due that im running diy co2 and the only time i did its when i was a kid in my das tank and it was long long long time ago atleast 113 years

correction i meant 13 years not 113

 

[abrahamavelar]

ohhh just like any fish tank??????

 

[siva]

LOL I knew what you meant.

Well, more than just any ol' fish tank. If you aren't running an air stone I wouldn't fill the water level so high that it touches the filter and reduces the agitation.

 

[abrahamavelar]

oh ok ya i know what you mean its just been years since i have one of the hob filters i usually either the canister or the ones u put inside

 

[OG Radcom]

These two are fine

 

[siva]

Great pic. There are definitely some success stories out there, but I still can't recommend the combo.