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
5 Sep, 21:16the fish nerd22
just make sure to do lots of water changes, the longhorn cow fish will release a tiny bit of toxins, and since the copperband is so delicate, it has a higher risk of dying, also remember to put the copperband in quarentine for at LEAST 2 1/2 weeks
20 Aug, 21:26rmejia364
I bought a Coral beauty and introduce it to the aquarium. Immediately the sergeant major damselfish went into attack mode. The sergeant was a bit aggressive with a royal grammar but not to the other tank mates (Blue Damsel, Tomato Clown, Diamond Goby). When it saw the Coral beauty "It was on". I guess they must be the same size (or coral beauty bigger) and introduce at the same time (or sergeant major last) to be compatible.
7 Jan, 03:31rlbadger
My neon dottyback was too aggressive and continually nipped and chased my goby. Had to move the goby to another tank with less aggressive tankmates.
13 Nov '15, 19:43MJENNI27
Maybe others have had better luck. Our Longnose Hawkfish was heavy on the hawk. Any other fish we added to the tank, he would attack and rip the fins to shreds, killing multiple fish until we sent him to live in a tank with more aggressive fish like damsels.
11 Jul '15, 20:42plooberman
I currently have a 75 gallon tank with 50 gallon sump. I only have 7 inches of water with a 180 galloon rated protein skimmer. Water is clear and the 6 inch clown/peacock mantis has a cave. The 4 inch porcupine puffer travels all over the tank but mainly stays on the otherside of the tank. They currently leave each other a lone. When they do occupy the same spine, neither one bothers the other. The first time they met, the mantis shrimp was currious and annoyed the puffer which inflated partially but since then nothing has happened...yet.
Recent Profile Commentsview all
11 Sep, 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.
24 May, 03:48MissReneeGoff
The Zebra Moray Eel is the most peaceful one & not aggressive. I don't know what site this is but should be removed for posting inaccurate stats.
25 Mar, 08:47greatwyt
the pic on this page looks more like a Flame Angelfish (Centropyge loricula) than a Rusty Angelfish (Centropyge ferrugata)
13 Mar, 11:13Wilfelm
Hi just wanting to know from people how they keep this fish, and where do u get the copepods etc, ,from australia
23 Jan, 00:15AquaAddict
My Starry Blenny seems rather aggressive. It chases my Springer's Damioselle and wants to take over its territory. In fact, it wants the whole tank! However, it is a fabulous algae eater getting into every nook and cranny that my Yellow Tang missed (no longer have him)