Creature ID

Anyone care to take a guess?

This stuff is growing in my acrylic sump that is in total darkness.

78 gallon(including sump) fish only tank up for about 9 months, with a fire
scallop, pink feather duster, yellow tank, royal dotty back, 3 stripe
damsel, yellow tale damsel, rockskipper, false clown, various hermit and
snails. using ro/di water.

nh4-0
no2- 0
no3- 0
po4- 0.01
ph- 8.2
SG- 1.023
temp- 79


http://www.mingsa.com/space/sumpstuff.jpg



any suggestions welcome.

They /look/ like tunicates, but I doubt that's what they are . They're probly some sort of sponge. I've had these in my aquaria before and I've seen
them growing on the glass in a lot of live rock holding tanks in pet stores. They shouldn't be a problem in a fish-only tank. Most likely you're not
seeing them in the actual tank because the fish are cropping them before they can grow. That's just mho.

Anyone care to take a guess?

This stuff is growing in my acrylic sump that is in total darkness.

78 gallon(including sump) fish only tank up for about 9 months, with a fire
scallop, pink feather duster, yellow tank, royal dotty back, 3 stripe
damsel, yellow tale damsel, rockskipper, false clown, various hermit and
snails. using ro/di water.

nh4-0
no2- 0
no3- 0
po4- 0.01
ph- 8.2
SG- 1.023
temp- 79


http://www.mingsa.com/space/sumpstuff.jpg



any suggestions welcome.

"sal" wrote in message
...
They /look/ like tunicates, but I doubt that's what they are . They're
probly some sort of sponge. I've had these in my aquaria before and I've
seen
them growing on the glass in a lot of live rock holding tanks in pet
stores. They shouldn't be a problem in a fish-only tank. Most likely you're
not
seeing them in the actual tank because the fish are cropping them before
they can grow. That's just mho.



They are sponges, but for the life of me I can't remember the species name.
Harmless.


--
Toni
http://www.cearbhaill.com/reef.htm

"Toni" wrote in message
. ..


They are sponges, but for the life of me I can't remember the species
name.
Harmless.




Syconoid sponges!!
(ReefCentral is back up g)



--
Toni
http://www.cearbhaill.com/reef.htm

I'm thinking Scypha Sponges, benign filter feeders.

Marc


Toni wrote:

They are sponges, but for the life of me I can't remember the species
name.

Harmless.



Syconoid sponges!!


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