Let's be honest, the hype on sea sponges is just that...hype. If you provide a shallow bowl for your Hermits than they do not need a sea sponge. Sponges are best used for retaining your humidity when placed in a corner of your tank (Not in the bowl). The only time this product should be placed in a Hermie water bowl is if you have an extremly deep bowl and if your a good Hermit Crab owner, you simply wont use one because a sea sponge is no gurantee that smaller crabs can escape the depths of the water.

My hermies loved this!! They would suck the water out of it instead of not drinking the water out of the bowl. It made me feel better that they wouldnt drown. I put this in the freshwater and they would lay in the saltwater bowl. I dont mind that it dried over night because I think it reminded me to put new water in the bowl. I LOVE THIS SPONGE!!!

My hermit crabs like to bathe in their water more than they like to drink. I keep this in their pool for them to cling on if they ever "drown." Its alright.

None of my hermit crabs drink from sponges, but it acts as a stepping stone for smaller hermits. It also slightly helps with humidity. Overall don't rely on it as a water source. The crabs prefer to drink straight from the dish.

I got this sponge for my two madagascar hissing cockroaches. It is ok but it does not hold water for more than 3 days, and if it is allowed to get bone dry after getting wet it will break into dust. I reccomend to always put your sponge on a lid of some sort. (I used a ragu pasta sauce lid)

i have 4 hermit crabs and a big tank i bought two of these sponges and they love em...my hermit crabs prefer drinking from the sponge not the dish they bathe in the dish....they use it as a toy also to climb over it...it is a good product

my hermit crabs love this sponge.well worth the price.it keeps the tanks humidity level constant.They also love to climb it.

Since the sponges will provide heat they are way cheaper than a heater and then hermit crabs won`t drown.Nobody wants that to happen,right?My hermet crabs loved it they also use it as a climbing toy.