Reef Central Online Community

Home Forum Here you can view your subscribed threads, work with private messages and edit your profile and preferences View New Posts View Today's Posts

Find other members Frequently Asked Questions Search Reefkeeping online magazine for marine aquarists Support our sponsors and mention Reef Central

Go Back   Reef Central Online Community > Invert and Plant Forums > Mantis Shrimp
Register Blogs FAQ Calendar Mark Forums Read


User Tag List

Thread Tools
Old 05/22/2020, 01:31 PM   #1
Registered Member
Join Date: Apr 2011
Location: Portland Oregon
Posts: 428
Help Mantis Shrimp carapace is covered in algae.

I recently purchased a small mantis shrimp from my LFS, unfortunately it was hiding in PVC pipe, so I didn't get a very good look before buying it. Upon putting the shrimp in my aquarium, I noticed that it's capapace and upper tail have significant amounts of algae growing on it. Is there anything I can do to help the shrimp out, or is it a gonner?

thelizardkin is offline   Reply With Quote
Old 05/23/2020, 01:59 PM   #2
Registered Member
teddscau's Avatar
Join Date: Oct 2011
Location: Canada
Posts: 201
Hmm, I've had something similar happen with my opae ula (completely different animals, but whatever). I'd recommend keeping the light in the tank very dim to slow the growth of the algae, while also providing plenty of places for the mantis to hide. If you are keeping the mantis in a tank without corals, make sure there is absolutely no nitrates or phosphates using extremely accurate test kits.

I'd recommend frequent water changes, a reasonably low water temperature (no higher than 78F), plenty of water flow, and very nutritious food (LRS for example). What type of algae is it, by the way?

As for whether or not he'll make it, it's hard to say. It's one thing for crabs and lobsters to have algae, barnacles, etc. growing on them, but for mantis shrimp who are known for their excellent grooming habits and pristine exoskeletons... Has it spread to his swimmerets, gills, mouth parts, or clubs/spears?

I'd also recommend ordering some Fluconazole to see if it'll kill the algae on him.

Dotty the firefish
Delilah, Samson, and Little Henry the designer Ocellaris clownfish
Pixel the convict tang and Darwin the blue tang
Four pyjama cardinalfish
Pickles and Goliath the harlequin ser

Current Tank Info: 160g reef tank with mushrooms, leathers, zoas, SPS corals, NPS corals, firefish, a school of pyjama cardinalfish, three designer Ocellaris, two tangs, and a blenny
teddscau is offline   Reply With Quote
Old 05/30/2020, 07:58 AM   #3
Harlequin Shrimp
Calappidae's Avatar
Join Date: Aug 2013
Location: Somewhere
Posts: 3,812
Personally I never heard of algae growing on stomatopods, but if it truely is algae it'll just go away on the next molt like with most crustraceans. Most algae doesn't like to grow in high/mid flow areas, especially cyanobacteria and diatoms, so the likelyhood of it growing on mantis shrimp or anywhere near the gills seems unlikely to me imo.

Would be wise to provide a picture and do a quick search on mantis shrimp shell rot, a more likely case scenario.


Current Tank Info: 125 Gallon Mixed Reef Housing Hymenocera; 30 Gallon L Housing Odontodactylus scyllarus; Refugium (attached to 125) Housing Neogonodactylus wennerae, Hepatus epheliticus, and Protoreaster nodosus (Feeders)
Calappidae is offline   Reply With Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

All times are GMT -6. The time now is 02:24 PM.

TapaTalk Enabled

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2020 Axivo Inc.
Use of this web site is subject to the terms and conditions described in the user agreement.
Reef CentralTM Reef Central, LLC. Copyright 1999-2014
User Alert System provided by Advanced User Tagging v3.3.0 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.