• Welcome back Guest!

    MARSH is a private reefing group. Comments and suggestions are encouraged, but please keep them positive and constructive. Negative threads, posts, or attacks will be removed from view and reviewed by the staff. Continually disruptive, argumentative, or flagrant rule breakers may be suspended or banned.

Petrochirus diogenes - Giant Hermit (1 Viewer)

Users who are viewing this thread

tmf171

Guest
Joined
Mar 18, 2014
Messages
9
Reaction score
0
Location
Sugar Land
I have a giant hermit. At least I believe based on some research that I have the name correct. Hermit plus shell are the size of a pool ball right now. Its awesome and a great showpiece in the tank. I check the tank at nights when i let the dogs out and recently noticed the hermit crab was crawling all over the rockwork. I'm thinking good, this thing will eat all the crud on the rocks and that should be fine. Well, for a week it was like this and then all of a sudden half a zoa colony is missing. They looked pretty good. Random coincidence? Could be something else in the tank? Next day my hammer coral that was the size of an adult fist is totally gone - the only thing left is the super glued plug AND more of the zoas are gone. The only thing with strength enough to break the colony off the plug is the hermit. Into the sump it goes. I eventually find the skeleton, but its way too late - nothing is left on it. I'm assuming after the hermit had its way everything else jumped into fray and started eating. Next night, counted zoas and the exact same amount are around again from the night before. Spent one night in the sump which was totally covered in algae and cyano and diatoms. Next morning it was almost spotless.

Anyone have any experience with these hermits? Do they someday just say meh, i'm going to ruin your reef today? I'd be interested to talk to someone that owns one and how they deal with shells and appetite.
 
OP
OP
T

tmf171

Guest
Joined
Mar 18, 2014
Messages
9
Reaction score
0
Location
Sugar Land
Picture attached. Taken back in September. Pretty much just even bigger now. Not sure if this makes the thread "LESS WORTHLESS"
 

Nickig23

Guest
Joined
Apr 22, 2014
Messages
497
Reaction score
1
Location
Off 2978 in Montgomery 77316
Aww he looks like my big little guy, cept mine has blue eyes. Sorry I don't have any advice, before adding him I looked up crabs and it said if it's hairy or has blue eyes don't put him in ur reef, so he's in my fish only. Hes gone up three she'll sizes in the last year.


Sent from my iPhone using Tapatalk
 

webster1234

Supporting Member
Joined
Jun 29, 2012
Messages
1,456
Reaction score
669
Location
Pearland
I don't think those Giant ones are reef safe. I know people that have them in FOWLR tanks but anything that size is going to have a voracious appetite. I'm not surprised he ate your coral. That's all those things do all day is eat.
 
OP
OP
T

tmf171

Guest
Joined
Mar 18, 2014
Messages
9
Reaction score
0
Location
Sugar Land
Yeah, after crabs totally cleaned out the sump overnight I got curious to see if crabs was hungry so I dangled a piece of nori in front of it. Went to town on it instantly, seemingly gone in moments. Doesn't really eat flakes or pellets though, and can't really get mysis, etc out of water column. Maybe should have been dropping nori to bottom all along. I'll try to get a better picture of it this weekend - got some large shells on the way. Planning to keep it in the sump where it can't do damage for a while then figure out what to do with it. Came in a clean up crew from john at reefcleaners. Its amazing how fast these things grow.
 
OP
OP
T

tmf171

Guest
Joined
Mar 18, 2014
Messages
9
Reaction score
0
Location
Sugar Land
It looks like Mr Saltwater tank has something similar in his tank at 3:30 in replay-of-the-question-and-answer-session-with-mr-saltwater-tank-on-4152014. Wish there was more information on these gigantic crabs on the interwebs.
 

Nickig23

Guest
Joined
Apr 22, 2014
Messages
497
Reaction score
1
Location
Off 2978 in Montgomery 77316
[iQUOTE=tmf171;390938]Yeah, after crabs totally cleaned out the sump overnight I got curious to see if crabs was hungry so I dangled a piece of nori in front of it. Went to town on it instantly, seemingly gone in moments. Doesn't really eat flakes or pellets though, and can't really get mysis, etc out of water column. Maybe should have been dropping nori to bottom all along. I'll try to get a better picture of it this weekend - got some large shells on the way. Planning to keep it in the sump where it can't do damage for a while then figure out what to do with it. Came in a clean up crew from john at reefcleaners. Its amazing how fast these things grow.[/QUOTE]


Mine was in a bunch of red and blue legged hermits I got as a clean up crew too, I would have dropped him in with the rest, but the blue eyes threw me off. That's what caused me to try and look him up, and decide to put him in the fish only tank. He was the same size as the rest when I got him. They all stayed the same size while I watched him grow and grow and grow. Iv enjoyed watching him shell shop lol, quite entertaining seeing him slip in and out of each one until he's happy.



Sent from my iPhone using Tapatalk
 
Top