FAQs about Live Rock
Related Articles: Live Rock, Reef
Related FAQs: Live Rock, Answering
Some LR FAQs by James Fatherree, LR
Hitchhiker ID 1, LR Hitchhiker ID
2, LR Hitchhiker ID 3, LR Hitchhiker ID 4, LR Hitchhiker ID
LR ID 6, LR ID
7, LR ID 8, LR ID 9, LR ID 10,
LR ID 11, LR ID
12, LR ID 13, LR ID 14, LR ID 15,
LR ID 16, LR
ID17, LRID 18, LRID 19, LRID 20,
LRID 21, LRID
22, LRID 23, LRID 24, LRID 25,
LRID 26, LRID
27, LRID 28,
LRID 30, LRID 32,
LRID 33, LRID 34,
LRID 35, LRID 36,
LRID 37, LRID 38,
& Non-Vert IDs 1, Tubeworm ID, Polychaete Identification, Live Rock 1, LR 2,
LR 3, LR 4,
LR 5, Curing
Live Rock, Live Rock Selection,
Shipping/Moving, Placement, Lighting, Water Quality, Live Rock Studies in Fiji Collaboration
& Charts, Copper Use, Marine
Landscaping, Marine Biotope,
Sumps, Refugiums, Faux Rock,
Stuff Growing On Rock 12/4/12
New to the marine hobby, I have no clue what this is growing out of my
rock. It's a white cotton like button with a hole in the middle.
It's popping out in several places. As you can see here, off the
rock between a polyp.
The rock is Manado. I set up the tank with it and cured it for two
Could it be sponge? Bad? Or cool?
<Likely is a sponge, and not a worry. BobF>
Hi can you help me out please. 11/22/12
this is my first saltwater aquarium I've had it for 5 days it's 400 liters
and roughly 20-30 liter sump running a skimmer and heaters to 24 degrees
(Celsius). Yesterday I added live rock after achieving a 1.024
salinity<Specific Gravity> and was wondering what is happening on them i.e.:
good or bad.
I'll attach 2 pics and hopefully get some answers, after searching the web I
candidate find any info on what I'm describing or am possibly phrasing it
Is the first picture coral or something else?
On the second picture are these pods/bulbs good or bad the seem to be
appearing really fast.
<Bubble algae, "bad".
My live rock has only been in the tank 24 hours. My water readings are as
follows pH.=8.2 k.h=196.9 ammonia=0.50 nitrate and nitrite
are zero calcium=380 and phosphate=0.25
Any help will be appreciated.
Can you help me identify this? 10/11/12
I have this purple bubble looking stuff growing on one of my rocks, and
it is getting more prolific. Can anyone identify it?
<Looks to be some sort/species of Botryocladia...>
Should I be concerned?
<Mmm, not much>
I am wondering if it is in the bubble algae family....
<Sea Grapes... some folks call/label as Red Valonia... not as invasive>
Thanks in advance,
<Welcome. Bob Fenner>
Re: Can you help me identify this? 10/11/12
Thanks for such a quick response.
Would you attempt to remove it? I don't find it unattractive...just
don't want some major epidemic on my hands!
<I'd leave it/this... most Reds come and go of their own accord. B>
Thanks. Will leave alone and continue to marvel at what just "shows
up" on its own in my system!
ID me please 9/19/12
Once again, I seek your expert opinion. These little critters are
growing all over my live rocks. They are small, less than dime size, are
not smooth and have appeared over the last few months. Some are sticking
between two different rocks. Any ideas what they are and if they are
safe for my reef?
<Syconoid sponges... not problematical. Bob Fenner>
LR ID, illiterati 8/18/12
hi found this thing stuck fast under a rock,it was found next to a smaller
one. The big one is about 25mm long and about 10mm thick any ideas on what
<Maybe a Bryozoan of some sort. Bob Fenner>
Stranger in my tank/Invertebrate ID 8/7/12
I was hoping you could help identify this little orange/yellow thing
growing out of mu live rock. The rock is of Fiji origin and sits in a
400 ltr marine tank. The tank has been running for nearly 3 years and is
very healthy. We test ph/nitrate/ammonia etc at least once a week and
the salinity daily, all perfect. We have no corals at the moment but are
looking to "branch out" as it were. We have 2 cleaner shrimps, 1 boxing
shrimp (love this guy), 3 hermit crabs, a fox face, a neon wrasse, 2
clowns (of course:-), a bi-colour blenny, a coral beauty and an orange
spot goby. We have the usual growing on our live rock but this fella has
appeared from no where like Audrey 2. I have tried scanning the net for
similar items but cannot find anything remotely similar.
It does not move, it has no tentacles and looks like a sausage made of
clay squished down on the rock. It doesn't seem to be growing rapidly at
Please can you help?
<Your pic isn't resolved enough to ID with any accuracy. My guess
is a species of sponge and there are approximately 5,000–10,000 known
<You're welcome. James (Salty Dog)>
Re Stranger in my tank/Invertebrate LR ID 8/9/12
I will try for a better picture for you, my phone isn't really the best.
Watch this space guy's :-)
<Sounds good Amie. James (Salty Dog)>
Bacteria? Red Algae ID and too/two large fish in too small a
Hi WWM crew!
<... 4.5 megs pic?>
Currently have a 110G FOWLR set up. Water
parameters are all normal except nitrate (20ppm). I have this
interesting stuff growing in my tank.
I think it may be some type of bacterial growth (not the Aiptasia lol)?
Can you ID?
<Is a Rhodophyte. See WWM re>
If so I am wondering if it is harmful? Should I treat it and if so
with what? 4 fish in the tank. 1 5" clown trigger, 1 5"
banana wrasse, 1 5" emperor angel and 1 7" golden Arothron
<These both need more room than you have>
I want to make sure what I treat with is ok for the puffer.
<Read on! Bob Fenner>
|Re: Bacteria? 8/1/12
Sorry the pic is so big. Tried to get a good, detailed picture.
<Ahh, I see. B>