Black Moor
Alternative Name(s): Dragon Eye / Black Peony Goldfish
Scientific Name(s): Carassius auratus
Category: Coldwater
Maximum Size: 20cms
Minimum Tank Volume: 140 litres
Minimum Tank Size: 3ft
Water Temperature Range: 18-22°C
Water pH Range: 6.5-8.0
Water Hardness Range: 6-16 dGH

General Information: Dark velvety black fish - some will change colour. Keen digger/bottom feeder. Will feed incessantly if allowed. Good example has double caudal fin, lobes forked & rounded, body depth 2/3 of body length, dorsal fin 1/3 to 5/8 of body depth. Pectoral and pelvic fins double and equally long.
Tank Requirements: Fancy Goldfish, given correct conditions can grow very large, which means they are not suitable long term for small aquaria. See Minimum Tank Volume and Minimum Tank Size above.
Diet Requirements: Omnivore. As with all fish, should be fed a varied diet consisting ideally of sinking pellets, occasional veg and bloodworm/daphnia etc.
Compatibility: Social fish, best kept with other Fantails as Singletails can become too boisterous. Not good at competing for food due to poor vision. Social shoaler.
Recommendations: No jagged tank decor or 'hidey holes' (castles etc) and real or silk plants are best to avoid eye injury.
Common Problems: Swim bladder problems due to their body shape, typical for Fancy Goldfish. Large eyes are an osmotic and infection risk in high nitrate. Susceptible to oodinium and fungal damage, treat at first symptom.
Similar Species: All other Fantails, Telescope Eye, Bubble Eye, Lionhead, Pearlscale etc.
Sexing: Males have white spots on their gill plates and front edge of pectoral fins: breeding tubercles. These should not be confused with the disease white spot. Females develop a deeper body and have a larger vent (just before the anal fin) than the males.
Breeding: When they have spawned eggs should be taken away from the parents to raise them or they will be eaten.
Author(s): Goldy, Violet, Fishlady | Photo: | Views: 72586
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  • Home away from home

 Food types

As long as Moors are kept with the right tankmates, floating pellets or flakes do not pose a problem.

  • Just popping in

 Black Moor... Should there be more than one?

Since the article says that Black Moors are social, should I purchase another? (or similar breed?) If so, are there any types that are more compatible that others?

  • Coldwater Moderator

 Re: Black Moor... Should there be more than one?

Check out that minimum tank size for one ... don't keep any if you can't provide that.

  • Just popping in

 weird black moor

HI i got 3 black moor with 2 bigest black moor act very weird in the evening first time i tought he was dead because he go on his side and after he flip on his back and stay for a good 5 minutes or till other fish wake him up i call him weirdo capitain.

  • Coldwater Moderator

 Re: weird black moor

Hi weirdocap - welcome to FK Sounds like your fish has some dietary and digestive problems, have a read of this thread for more info: ... =ASC&type=&mode=0&start=0

Best thing to do is start a thread in the forums if you have any questions

  • Just popping in

 advice needed please

hello... we have a black moor that needs your help... i think lol for the last few days he or she (i cannot tell ) has been just laying at the bottom of the tank in one corner hardly moving at all.. it responds to some tapping on the glass and when i sprinkle some food every other day but we are worried something might be wrong... it shares the tank with a golden fantail and even he seems to think something is up as he doesnt play with his mate no more and is swimming next to him/her as if to comfort... any ideas on what could be wrong? thanks in advance

  • Just popping in

 blackmoor behaviour?

I recently purchased a beautiful Black moor.Only had him 2 days but hes spending all his time at the top of the tank.Is this normal behavior or is there something wrong?could anyone please tell me.

  • Forum Manager

 Re: blackmoor behaviour?

Hello Rockchild and welcome to Fk you would be better posting your questions on the coldwater forum giving as much information on your tank set up as possible, as in size, how long it has been set up for and if it has a filter etc as this will help the advisor's and save them having to ask these questions before they can help you ok

  • Just popping in

 Re: advice needed please


Did you get this sorted or is this normal behavior of the Black Moor fish? I have the same problem with one of my Black Moor fish, I have just done a 25% water change to see if the problem get better but nothing has changed. I'm about to test the water quality later this weekend.

  • Tropical Moderator

 Re: advice needed please

It would be better if you could repost in the Coldwater forum about this where more people will see it. When you do, please include the following information:

Size of tank, number of fish and what species' they are, how long the tank has been set up, whether it was cycled before adding fish and if so for how long, how often you change any water and how much each time and current test results for ammonia, nitrite, nitrate and pH.

  • Just popping in

 black moor eye question

I have a large black moor which has turned orange. It shares the 125litre tank with a shabunkin which is big also. The problem is the black moors eyes look glaced or something. I am no expert. I thought they were like that. One is like see through speckled and the other is black with the cover on it.

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