Sea Spiders

[mmbbhill]

Hitchhiker identity from live rock

Hitchhiker identity from live rock

I think that I may have picked up a spider of some kind. Can someone identify it?View attachment 343853 It is the black spot on the sand on the right side and its another on the rock. Do I need to remove it?

 

[jbvdhp]

I could be wrong, but the uppermost one looks like a small urchin, no?

 

[mmbbhill]

That was my first thought, but it is just under the size of a dime right now. I hope you are correct.

 

[dtb125]

i have at least two kinds of spider in my display that came with an anemone and possibly with some caulerpa i got out of someones sump.i stil have not put any corals in because sadly i have been dealing with pests and extra cycleing time do to not washing my sand well enough. would like to try running freshwater in my sytem to start all over but keep most of my bacteria since i still have no corals placed. :'(
????????
was hoping someone else has observed them in reaction to fresh water or used this method.??????????

125gl display75gl sump pumice/liverock filter sock berlin mod skimmer. firefish,clown,sexy shrimp, urchin,cleaner shrimp,flame angel, red scooter blenny hermits, snails, 1 turbo

 

[dtb125]

http://reefcentral.com/forums/album.php?albumid=10796&pictureid=74921

 

[dtb125]

i do think they are feeding on my copipod amphipod brine population they are booming and then will be almost non-exsitent when there are alot of webs.oxygen scrubbing things makes it hard for them to build web and ****es them off as a side note.

 

[dtb125]

i it seems i am successfully starving them out.so if anyone cares to know it is possible. it has been almost three weeks: think it will take a month (four weeks) before its over. will re-post after it is a hundred percent for confirmation. i just want to put coral in tank and get my reef started but alas i must wait longer yet.

 

[dtb125]

happy to say all rock work is vivid and sparkling all the webs are gone i see no sign of any clumping of detritus and sand and no egg sacks that i see.i am going to wait longer but it looks like it is finally ready for some coral.

 

[dtb125]

nothing in display now except sand (fine beach) one dead coral head and one piece of pukani live rock with coraline. i am still finding cocoon like egg sacks cant seem to starve them out. there is a cleaner shrimp, sexy shrimp, some snails, a couple reef hermits, and an urchin ( which seems to eat the smaller variety of spider webs and all. not sure really have to get a descent microscope. the egg sacks are appearing in the pukani in the darkest spots of the recesses in the rock. still haven't even seen a larger spider but dont know what else could be making these cocoons.they are about half an inch long and a quarter inch wide.cant get a good pic and they look dfferent after i tear them of the rock. they are well attached by the way not crusted just dont come off easily kind of tear like strong tiny thread breaking. i want to try to fresh water soak it but dont want to loose coraline. does anyone know how long the coraline will withstand fresh water? it would be of great help thank you. p.s. tank is really so clean that it wont even support bristlle worms very long so i have no idea what they are eating. can say i never see all the little critters that used to cover the glass but also got rid of all my plants also.
thank you to anyone who takes the time dtb