Yeah, yeah, I know. Its not a snail or crustacean but i dont know where else to put this thread. (maybe they should just title this forum "invertebrates?" Anyway, I was browsing Oliver Knott's gallery at pbase.com and he has beautiful pics of a freshwater jellyfish in one of his planted tanks, caught in a German waterlogged quarry according to the description. The pbase windows dont display individual URLs (just says "pbase.com" everytime you click a link) but it did display a separate link with info on the jellyfish. They look so cute in Oliver Knott's photos!

http://animaldiversity.ummz.umich.edu/site...a_sowerbyi.html

Not me. I always hated going to the beach in August cuz of all the jellyfish out around here. They're neat to see at the Aquarium, but I wouldn't want to own any.

These are non-stinging jellyfish if you read the info on the link. Well... not stinging to humans that is... It says all they eat are Daphnia or baby brine shrimp.

Placing this Post in here was fine. I guess if we wanted to get technical,we could just call it Invertebrates,but ahh,this works fine.
As for the Jelly fish,I would have loved to have seen his planted tank with them in there.I'm sure it was lovely. I personally wouldn't have any interest in keeping them myself,but it never hurts to look and admire.

Just type "Oliver Knott" on a search engine and look for his gallery on the plantella/pbase site. Choose "thumbnails" view and look for the pic with "Other Stuff" on it.

seeing his planted tanks always makes me "green" with envy. real masterpieces. You should really check it out

Oops. Its actually under "Various Things". sorry for the mix-up. heehee

Thanks,I will seek him out.

Wow.. He has alot of great pics of everything ,doesn't he? I saw another article where one of his tanks won an Aquascaping Contest in 2004-sweet!!!
http://www.aquabotanic.com/contest2004/index.htm

I love that tank in Devs' link! *druels and dreams*

It definately is gorgeous,that's for sure.I'd love to see a school of Tetra's racing through it and a shoal of Cories.Those tanks never seem to have fish in them though. I guess that's why they look so perfect.

Look closer at that pic Sharon, there's NEON tetras in there! That's a coooooool tank.

It sucks getting old! I never saw them the first time-I am going blind afterall!

last time I was at my local petco they had jellyfish for sale. Might want to check them out

You're not old Shar, you're just "classic".

Those aren't neon tetras. they are Red-lined torpedo barbs Puntius denisonii. They're the newest craze among planted tank aficionados since they're one of the most beautiful barbs known

Those are probably saltwater jellyfish. The ones I wanted are tiny freshwater jellies.

Yea Erika,if you go in and check all the pics,they have a couple pics of Oliver's tank with some closeups of the fish.Very beautiful fish by the way.

that particular tank has updated pics in his pbase gallery. all of his tanks there are incredible. you guys should really check them all out...

Hmm... we kind of departed from the thread topic haven't we?

jellyfish would be cool, could imagine them being very fragile though...
that tank sure is cool... anyone know what the plant along the bottom is? have to get me some of that...

That plant is Hemianthus challictroides. Very difficult plant to establish. Only commercially available in Europe or online. Check it out at tropica.com...

Oliver Knott's gallery featured a beautiful tank in the pbase website where he only used this plant and a rosette arrangement of beautiful rocks. It looked like a scene straight out of Lord of the Rings

oo, can u post a pic of it up?

sorry, the site has safeguarded its pics against downloading of any sort. Nor can I put the URL since all windows in it state "www.pbase.com" no matter which link you click in there (and pbase is actually a pretty big site to maneuver in)

Just go0gle "Oliver Knott" and look for his gallery on plantella/pbase. Choose "thumbnails" view and you can check out all his tanks and arrangements. You can find the tank I speak of in there (Large Tanks category) as well as the tank which won Aquabotanic's aquascaping contest 2004

cheers

edit: did you mean Hemianthus thalictroides?

no... challictroides. Thalictroides is water sprite... anyway, just look it up on Tropica

he he, i went in the back way, cheers:

http://www.pbase.com/plantella/various_things

gah... thanks a lot! that saves me a lot of typing explanations on how to get to that link!

r they dangerous to goldfish

It's more accurate to say the goldfish are dangerous to the jellyfish They're so small, they'd be eaten in a snap (pun intended)

poor poor jellie fish

Well... I got my wish guys. I have a tank now overrun with freshwater jellyfish and I didn't even have to put them in! (well... not intentionally, that is)

Goodness, I can't believe they're so tiny! (about the same size as the space enclosed in an "o" in this font). It gives me headaches to focus my eyes on them, add to that the fact that they're semi-transparent... Very neat to observe though, they swim exactly like "Squishy", that tiny jellyfish Dory tried to adopt in Finding Nemo.

Also, sorry I couldn't post a pic guys. It'll take a very good-quality digital SLR to capture their image, and I'm not going to be able to afford that for a very long time... (I can't even own a standard digicam at present. argh...)

I'm guessing they came in with the plants I'm attempting to grow in my vacant tank. It's got no filters of any sort in it BTW, which is probably why they proliferated so fast (seeing how small and delicate they are, even an airstone would disturb them too much). Infusoria and lots of microorganisms also thrived in there, which provides them with food. I'm now in a quandary what to do with that tank now... I can't even perform a water change without potentially killing the interesting inhabitants!

Wow!! I wish I could see them. Is that tiny size "o" their full grown size?

What sort of plants do you have in there and where did you get them?

^Now that I look at them again, they actually look smaller! It's their ring of extended tiny tentacles that's giving them a wider diameter!
I don't think they're full-grown already though... the pictures on Oliver Knott's gallery looks as if it might reach a diameter of slightly under a centimeter at least

well, I think the jellyfish have been there for a long time actually.... They only became apparent when all filtration and water movement had been turned off on that tank (as I said, even a very mild current would have thrashed them helplessly).

When I had first introduced java fern in that tank almost seven months ago, there suddenly appeared a curious mat of polyp-like things on the glass sides and the prefilter sponge of the powerhead. I couldn't determine what they are but let them be, as they didn't look like hydra, despite having minute tentacles (they resemble barnacles more) They reproduced rapidly, probably due to the high turnover and plentitude of detritus from fish poo. At one point, they even covered the inside of the prefilter casing!

I recalled seeing a drawn diagram of the life cycle of marine jellyfishes on a biology book and that they go through a stage of sedentary substrate-attachment during which they look like coral polyps before finally maturing as free-swimming medusae (larvae). I guess that's where the jellies started from and the lack of current when I turned the filtration off forced them to mature into free-swimming jellyfish (because they can't feed by filtering particles from the water anymore)