The Marine Compatibility Guide
Comparing Marine Aquarium Species
Welcome to the Marine Compatibility Guide which has been designed to help you to find compatible tankmates for your saltwater fish based on your current marine aquarium setup.
The guide is made up of three main sections, each of which can be accessed via the main menu at the top of each page or by using the quick tools further down on this page. The three main sections are...
Species: Containing descriptions and vital information for hundreds of species of marine fish, invertebrates and corals, this section also lists some common names as well as showing some popular tankmates.
Compatibility: Find out instantly if two species are generally known to be compatible. Displays the parameters of both in an easy to read table. You can let us know whether you think the species are compatible and see what others think.
Tanks: Create your own by setting the size of your tank and adding species to it. The guide will then display any known issues and show you tankmates based on the filters you set.
We hope you find this guide useful and please leave any comments you feel may benefit others. Also feel free to contact us with any feedback you may have. Enjoy!!
Quick Tools
Recent Compatibility Comments
20 Jun, 04:46vsndesigns
Mine both live in a 29 gallon biocube and the play with each other, but what surprised me today, was that I caught them hugging each other tonight! At first I thought my Flaming Angelfish was just getting cleaned by our cleaning shrimp, but it was our Starry Blenny! Weird huh?!
16 Dec '18, 16:00eduardodiasBR
I never could have Acans in my aquarium because of my Coral Beauty. I've lost 3 of them
1 Aug '18, 16:13Sushi
Our pictichromis paccagnellae led our pseudocheilinus hexataenia to jump out the tank, as he was scaring him. Too territorial into our 75l. Note: these were our only two fishes.
18 Jun '18, 20:41ann jones
hello.. i have engineer gobies in all my adult seahorse tanks (erectus) in fact in my 120 gallon the 4 engineer gobies are over a foot long now.. when feeding they eat right with the sea horses ..have never had an issue .. in my tanks they make great tank mates for eating the excess food
15 Apr '18, 17:07SteelGluer
I have these 2 in a 55 an they are fine together been together for over 6 months.
Recent Profile Commentsview all
29 Apr, 09:30jaronwp
This is one of my favorite reef fish, for its behavior. The ones I've had had were very peaceful and had a unique behavior pattern: they seemed shy, but continually darted from one hiding place to the next, so they created a very eye-catching pattern of movement around the rocks in the tank. One jumped out of my little nano, so be wary of that. I kept them with mollies, mushroom corals, and a scooter blenny with no territorial problems.
29 Jan '18, 21:48mehdirahbvd
Mine, that I own since now 2 years (and is now about 8 inches) , is with damsels, clownfish, Centropyge and Siganus is very kind. It doesn't touch to LPS nor to disk anemones. Not even to the small (1 cm) white starfish which are everywhere in the tank. The only live animal it did eat: snails, they may hide a few days but it always manage to got hem.
19 Jun '17, 23:41truittnotary
This is a dangerous fish. He has killed my Yellowtail Damsel, Royal Gramma Basslet, Tomino Tang. Hasn't killed Clarki Clownfish yet, but ate the eyes of the Tang... straight through from one side to the other! He should go in last. If he's already in your aquarium, you will not be able to add any other fish. I have a 55-gallon, FOWLR.
21 Jan '17, 14:54Zindebaad
Also known as Pink-margin wrasse, Red-margined wrasse, Red margin fairy wrasse. . .Cirrhilabrus rubrimarginatus
11 Sep '16, 02:54John Barron
I have had several of this species of triggerfish and they have varied quite a bit individually in terms of how aggressive they were. One of them was so aggressive that I had to keep him/her in a tank alone because s/he attacked literally any other fish that was in the tank. I had received the super-aggressive trigger from a friend who was fed up with him/her. I had another one of the same species who was very well-mannered and lived happily in a mixed tank with a tang, an angelfish, and a Sergeant Major damselfish--with absolutely no problems of aggression. This species of trigger seems to be the least predictable (IMO) as far as how aggressive it might be in the tank.