you know, i have angels and a BGK as well. . . . when i first got the knife i was doing research and trying to find out where i could keep him, and i came across a crazy number of "personal experiences" and other sources that stated over and over again that black ghost knives (knifes?) are prone to going after angels and eating their eyes. Because of that I don't keep mine together, and (even though there is a part of me that really doesn't believe it) I figured I'd let you know.
when that happens
your community tank will shrink..IME by as much as 50%..some pairs may use less space others may use more.
if you were to add more angels you will increase the chances of pairs forming..
the aggression will spread to other fish but angels will tend to spread it more amongst the angels..and they can have deadly consequences.
they will attack anything in the tank..when my pairs spawn..they will attack the feeding tube I use to introduce food to the babies..,my hand and any fish in the tank..
I am assuming that the 30 is qt only? and the angels will be moved to the 72 after qt?I have not kept a BGK so I cannot atest to their behavior.
My plan was to hopefully end up with a breeding pair that would have their own tank - just trying to find out what the appropriate size would be. The third Angel was then going to go in to the 72 as part of the community tank.
After hearing about BGK having a taste for Angel Eyes - I am seriously rethinking this plan. My BGK has not shown any aggression to his tank mates at all, but as everyone has mentioned, things do change. I have made sure that I have no live bearers in the tank as I don't want him to learn to 'hunt live food'. I know that he does put on some bulk after large waterchanges and I think that is likely due to the other tanks mates spawning.
I am assuming that if I end up with a mating pair that there really are no suitable tanks mates - the tank would be solely for the mated pair and their fry - which is fine. I have several smaller tanks (10s and 20s) that would work well as growout tanks.
If they do not pair up within a year, does that mean that they won't???? or do they change their minds ?
My plan for my BGK is to hopefully move him to a 210 gal - with a DIY cave system built in - hopefully sometime this summer or fall. I just have to find the right tank.
Then I would love to find a female BGK and try to introduce them - with a tank divider for the first little while to see how things go. I only ever saw BGK in my LFS once - so finding another one will definately be a challenge - especially trying to find one that is already about a year old.
Thanks for all the advice - any other tips would also be appreciated.
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