View Full Version : Tropheus

30th July 2009, 11:49
Can any one tell me what the minimum tank is tht you can keep a shoal of tropheus in would a 150 litre work or not?

30th July 2009, 12:22
It might if you had just a single male. Personally I think 250 litres should be considered the minimum for Tropheus.

Mr Mbuna
30th July 2009, 12:35
It might if you had just a single male. Personally I think 250 litres should be considered the minimum for Tropheus.

I agree. They are very active, very boisterous fish and need a lot of swimming space as they do a lot of fast chasing, mouth locking (males that is) and general scrapping. Pairs don't work as the male will probably kill the female so you really need a group of at least 6 and preferably 10 or more. I kept 23 in a 400 litre tank but I have had as few as 6 at one time. I bred duboisi ok with just 6 until bloat arrived, but that was again in a 400 litre tank. You can either go down the 1 male to many females route or an even number of males and females. Stress is a major factor in bloat developing IMO so minimise the stress levels and you will have more chance of success. Some varieties are more aggressive than others, so do some research on a tropheus forum before buying.

30th July 2009, 13:15
Stupid question time!

I'm not planning to keep Tropheus but I like to expand my knowledge so I was wondering, due to the temperament similarities between Tropheus and Petrochromis, could you keep them together?

Mr Mbuna
30th July 2009, 22:01
I have not heard of this so I can't really comment - try a forum which has a tropheus section such as cichlid-forum. All I know is that Petrochromis are very aggressive and need a big tank - some of the types are just too aggressive for aquariums, so given the high cost of both fish and considering the welfare of the fish, I wouldn't risk it unless you have a massive tank.

30th July 2009, 22:13
I don't think it's a good idea either. I haven't seen many Petrochromis for sale in the shops but the few that I have seen needed tank dividers for breeding pairs! They are very aggressive and quite similar to tropheus with their requirements which means they would competing for the same things.

30th July 2009, 22:25
But aren't all the fish competing for the same things in mbuna tanks?

30th July 2009, 22:55
No, even if they eat algae, some specialise in filametous algae and some in slime algae, others are fry predators and so on.
Mbuna tanks seem to work best when fish which are dissimilar are kept together rather than fish which are very alike.
Tropheus and Petrochromis are very alike and both are quite aggressive and territorial, due to the size difference though the tropheus would have a very hard time of things and probably wouldn't last very long.

31st July 2009, 10:03
Okay, thanks I see what you mean now (even though I doubt I will see Petrochromis in my lifetime lol)...

31st July 2009, 10:13
I've only ever seen them a couple of times. They were very expensive too.

1st September 2009, 12:53
He latest issue of PFK is suggesting they do not compete?

4th September 2009, 17:25
Petrochromis have recently been imported into the Uk via Rift Aquatics

12th September 2009, 19:40
55g or 75g US gallon (so about 50 and 65 UK or imperial gallons.) and 48" of tank length is usually considered the min for Tropheus (talking moorii and most of the more common ones) keeping adults long term. 8 being about the min except for dubousi that sometimes does well in even lower numbers. Personally I like 24 in 100gallons + with 60" or more of length. Though about 16 (with two dominant breeding males) is all you can have long term in a 48" tank.
Juveniles and singles can be kept in smaller tanks.
Petros are weird sometimes they do well in small numbers with just one male other times all sorts of strange things happen and multiple males live together. No safe way of keeping and breeding these guys. Its try and see if it works I think. Make sure you have backup tanks or it is a gamble. One maybe worth taking but I would prefer not to risk killing such expensive fish.

Some guys use a Tropheus colony to try and keep Petros (and spreed their aggression) but it is kind of beyond my pocket and experience.