Posts Tagged ‘bubbles’

The Post – Admiral Byrd Kicks Back on Father’s Day With Bubbles

June 15, 2008

It’s been a while since I’ve done any fiddler crab updates. Just to let you all know, they are alive and well. I’ve been under the weather a lot, so I had to put my attempts to raise babies on hiatus. However, not to worry. I’ll get there yet.

In the meantime, suffice it to say both ladies are doing well and have been mostly hanging out in their live rock. However, I did notice today that one of them was resting in Admiral Byrd’s “lair.” So I suppose babies might be on the horizon again in the not too distant future.

Admiral Byrd decided to celebrate Father’s Day by kicking back and relaxing. He climbed out of the water and sat on top of his cave rock, blowing bubbles. It does have that “foaming at the mouth” look, but in reality, I think he’s just relaxing and aerating his gills while he sits out of water. He keeps moving his claws and legs up and down as if he’s using them to spread the bubbles around and like he’s then washing himself. It does look odd. But, he seemed pretty relaxed.

I came across this entry from Wet Web Media’s FAQ on Freshwater Fiddler Crabs, where someone else noticed the exact same behavior with their fiddler crab, and asked about it:

“Odd freshwater Crab behaviour
I have a ten gallon tank with low water and rocks for crabs and other crustaceans. I bought some crabs and here’s my q’s.
Today the male??, one large one small claw, climbed out of the water onto the rock and started foaming? or bubbling from his face and doing something, like he was washing?? what is this? He the proceeded to sit then later he did this crazy claw dance, waving his arms around slowly in these rhythmic motions all the way out and then back in, what the heck? Does he have mad crab disease?

>> Crabs have to get oxygen when they are out of the water they will “chew” a small amount of water to mix it with air and get oxygen from this process, that is likely why your crab is foaming. He is waving his claws to show his territory and attract females, so he is not mad. …For a great website on crabs and other crustaceans check http://www.crusta10.de not sure if it is all in English, but the site owner is one of the most knowledgeable people on the subject. Good Luck, Oliver”

For some pics of Admiral Byrd’s bubble-blowing session, here you go!

First from the front:

And then from the back…note that Admiral Byrd is still watching me even though I am photographing him behind his back…he has his “eyes” tilted back to watch me:

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The Post – My Husband, Alias Fiddler Crab Midwife

February 28, 2008

Again I will note, it is my husband who thought of something crucial. I’d finally gotten the new tank so the water is clear, the nitrites aren’t too high, Scarlett O’Hara is calm and exploring the tank. I got the main tank’s water changed, so it too is in great shape. Feeling satisfied with the world, I commented that now all we need to do is wait for the birth.

My husband turned and said: “I’ve been meaning to ask you something that bothered me. You have the water filter running in the nursery tank. When the microscopic babies are born, won’t they all get sucked into the filter material?”

“OH MY GOD.” The man is right. We’ll come down some morning and Scarlett will have delivered and there’ll be no babies in the tank – just this primal cry of the thousands emitting from the cloth and charcoal filter material – the crab baby equivalent of “Oh the humanity!!”

I first thought maybe I could just pull out the filter material and just leave the water pump running, but again, my engineer husband said, “Well that will be okay I guess while they’re microscopic. But what happens when they start to grow and get a little bigger? They’ll get sucked through the pump and won’t that grind them all up?”

“OH MY GOD again.” You know, for a person who started this whole thing out with “So, we’ve spent $4 on fiddler crabs and a $100 on support gear,” and laughed at the endeavor, he is the one the babies should thank if they make it because he is the one paying such close attention to their every need. When I hedged about spending yet another $30 on a tank heater, he was like, “But won’t they need heat?”

In any event, I ran to Petsmart to buy a tank bubbler. There’s all kinds – wands, rocks, bars, then there’s pumps – all kinds of those, not to mention you have to buy the right pump to handle the volume of your tank and the right sized wand to stretch across your tank, then there’s the check valve you have to install if the pump is going to be below the aquarium instead of above it – keeps the water from backflowing into the pump in case of power loss….you get the picture. I finally settled on a pump for aquariums up to 20 gallons instead of 10. Wanted something with more power to push air in there. And I selected a wand to extend across the back of the tank to create a curtain of bubbles. I thought that might circulate the oxgen better than a bubble rock. It won’t filter the water, but hopefully the huge live rock and the bacteria I’ve already seeded the tank with from the old filter backing, will be enough to jump-start the nitrogen cycle without the filter running. The bubbler will give them fresh air. So, keep your fingers crossed.

At least Scarlett O’Hara seems to like it. She climbs up on the wand and sits there with bubbles flowing up around her. I hope she thinks it’s “surf” and releases the babies soon. My husband wonders if she is scurrying around the tank so much because it’s getting close and she’s frantically trying to find that right spot to let them go and be carried out “into the open ocean.” Sigh.

Truly, those fiddler babies owe him a lot. He is the true fiddler dad. Admiral Byrd may be oblivious and not care, but my husband surely does. It’s that whole “Caring is Catchy,” thing.