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Subliminal
12-20-2007, 12:51 PM
As per Miss Grins request, I'm starting a convo about Sea Hares.

Anyone else have any of these guys?

From about the second month up until the fifth month of my 29g's life I had a serious hair algae problem. I did manual removal and that helped. I switched to RO/DI and that started to help, but I knew it'd be a long road. Someone gave me a small urchin who I've never seen eat anything. I went to a local fish store and someone suggested a sea hare.

Upon looking in the tank where said sea hares resided, I noticed that there were about 5 of them. 4 were huge, the size of a toilet paper roll (for lack of better reference...was going to go with deli pickle, but thought that might be too regional), but one was about an inch and a half long (couldn't think of a good analogy...ha).

So, I bought it. I think it was like $6.

Well, I don't know if it ate any of my hair algae, but it's almost always on the glass eating diatoms or whatever happen to grow in places I can't clean (like on the side where all my xenia is growing up the glass).

He's kind of a cute little guy, despite his drab gray/brown/green color. His face kind of looks like that of a hippopotamus with his shrek like ear things.

As you can tell, I'm getting pretty technical here with my talk of toilet paper rolls, deli pickles and 'ear things'.

I've heard that they can ink when threatened, but I think my tank is pretty peaceful, and I've never seen such a thing happen. He's grown to almost 2 inches in the few months I've had him, and been a model citizen.

Every now and again I see him moving around on the rocks, too, but more so on the glass.

Now, all that being said, I'd definitely say he's been a good addition to my tank, and have really nothing bad to say about him.

I don't think I'd buy one strictly to clean your tank, but more for diversity of livestock.

If you look on liveaquaria.com it talks of supplemental feedings and a need for calupera. It mentions that they are expert only and they need shade from the light. I haven't noticed any of this, but mine also doesn't really look like the one in their picture.

Soooo...yeah.

Sorry for the long post.:lipssealedsmilie:

fsn77
12-20-2007, 1:08 PM
I've never tried one myself, but know a couple people that had limited success with them. For them, I think the problem was that a single sea hare couldn't consume the hair algae as fast as it was growing in their tanks. They hadn't mentioned any problems with them ink-ing, but did warn against them getting stuck on the intake screening of powerheads. I guess if too much of their surface area is on the intake screen, they aren't strong enough to pull themselves off of it.

Subliminal
12-20-2007, 1:13 PM
Well, I've a MJ1200 for my fuge and my intake tube for the closed loop pump has a good amount of suction on it, and he's cleaned both of those with no issue.

I'll try and get a picture of him this evening...

BMorgan
12-20-2007, 1:19 PM
That sounds cool. I though about getting one too. Keep us posted and let's see some pics! :)

SHK_ATK
12-20-2007, 2:18 PM
hmm do you know if they eat cyano? Might be a good investment for all the people with cyano problems.

snailrider
12-20-2007, 2:20 PM
I wanted to know what one looked like and found this short article
http://www.janetsreef.com/sea_hare.htm

I think I like em, I was thinking rabbit LOL, sea horse---sea hare :rofl:

Grins
12-20-2007, 2:46 PM
Thanks Damon! One of my LFS had a huge one, and your comparison of the toilet paper roll was dead on and made me laugh. It did a fantastic job with their one frag tank which was overrun with bryopsis. I don't have a huge algae problem and like you suggested have thought about one for diversity.

When I first started this hobby and someone asked me what fish, etc. I wanted or liked and replied their reply was "Ah the pretty stuff". I didn't quite get it now, but looking back I do. Having a background in design I was naturally drawn to the colors and shapes of things and still am. BUT, now my interests in the tank additions often have more to do with how they fit in the mini forced ecosystem. I try to buy fish and inverts that have a job to do in the tank.

I'd like to find out more about some of the smaller seahares. I've seen the posts about the invert guru over on RC and the links she has given for seahares. Would love to see pictures of yours when you have them up.

Pufferpunk
12-20-2007, 3:14 PM
I have had about 1/2 dozen of these guys in the past 4 years of reefkeeping. Evey single one either just disappeared (huge bioload to just disappear...) got caught in the powerhead (inked when I tried to remove it) or I found dead a week after adding it to my tank (boy, did it stink!). I have heard (& done) that they need a long acclimatation period. I have one now from a fellow reefer's tank that has lasted over a month--a record for seahares in my house. In don't have any green hair algae in there for him but tons of red turf algae I was hoping to see him devour. Unfortunately, I only see him on the glass & only comes out at night.

Looks like a turd to me:
http://img.photobucket.com/albums/v345/Pufferpunk/55gCorals/BessieSeaHare.jpg

Subliminal
12-20-2007, 5:34 PM
http://lh4.google.com/damontmorris/R2r7oisPO0I/AAAAAAAAChw/btUrF3mlXIs/s800/IMG_6741.jpg

http://lh6.google.com/damontmorris/R2r7wCsPO1I/AAAAAAAACh4/fugvvCUQ0-s/s800/IMG_6736.jpg

http://lh5.google.com/damontmorris/R2r7yysPO2I/AAAAAAAACiA/LSrmaSbF85Q/s800/IMG_6740.jpg

Grins
12-20-2007, 10:27 PM
They are so darn ugly they're cute.

FishPassion
12-21-2007, 5:50 AM
From what I have heard and seen once the tank has been rid of hair algae they will starve. Often within our marine boards where I live you will see a sea hare for rent lol for that simple reason they need hair algae to live. Now I dont know how many different species of sea hares there are and if all their needs are the same or not...

Subliminal
12-21-2007, 7:37 AM
Well, I've heard they are great with hair algae and that they need calupera to live...mine doesn't eat either, but seems to find plenty of food in the tank anyhow.

Of course, I don't skim, so I always have a little algae here and there. ;)

And Grins, I totally agree...so ugly but yet...so cute. Like a Pug. ;)

Umbra_Vipera
12-21-2007, 11:46 AM
Just a couple of links for everyone. http://www.seaslugforum.net/ and more specifically from that site Sea Hares (http://www.seaslugforum.net/general.cfm#sea_hares_(including_aplysiomorpha,_an aspidea_and_aplysia)).

Here's another link from that site about "inking" here (http://www.seaslugforum.net/display.cfm?id=19217).

Charlesr1958
12-22-2007, 9:47 AM
While I'm always for more life in any aquarium, please take the time to research the specific species that is being sold. A simple google search will most likely lead you to the sea slug forum where you should be able to find out where the species came from. Far to many times such animals are collected from subtropical locations and are not suited for tropical environments. Thanks.

Chuck

Rob_Mich
12-24-2007, 10:03 AM
I had a sea hare about twice the size of the one you're showing and I also got a purple nudibranch (I ordered a lettuce nudibranch) both of these guys wiped out all my hair algae in my 65 gal tank. Unfortunately I moved the seahare into my larger tank with a puffer & a trigger and he didn't make it. I agree that these are strange but lovable additions.

Pufferpunk
12-24-2007, 12:32 PM
Looks like my hare is actually eating the red turf algae. He isn't green like he was before & is pooping red!