3 Angels In A 60l Biorb

[Bapi]

To cut a long story short I had 3 baby angels in a cycled and set-up 60L upright rectangular Biorb. I also had a black tailed shark and one ram as well as a predator fish (that looks like a pencil fish – my ignorance on names, my son chose it and the garden centre staff failed to provide proper advise regarding mixing fish).

After about a month the angels disappeared and the predator fish (white, with yellow fins) had a big black lined grin on its face.

We likes the angels and have returned the predator fish (which was about 2.5” long by now) and bought 3 angle fish as replacement. The angles are about 3” long and 5” tall.

I know angels need about 8-10 gallons a pair, but so far they seem happy enough and eating properly. Any advise on how often to water change and ensure they remain happy?

In addition to the 3 angles there is a small (2” red tail shark, 1” upsidedown catfish and a single Bolivian ram 2”). Can I add some schooling fish (that won’t get eaten i.e. harlequins?

 

[Curiosity101]

The only way to keep them happy is to put them in the correct environment.

A fully grown 'mated' pair of angels need at least an 80l tall tank.
You have 3, and no guarantee of getting a mated pair.
If they stay as singles then as they mature they will fight amongst eachother, eventually one will win...

If you get a 'mated' pair, then they will gang up on the third one and more than likely kill it.

And no matter which scenario they will probably end up stunted in those conditions.

Red tailed black sharks are aggressive fish if not kept in the correct conditions. They should grow to at least 6" and are very territorial. You need a 55gal LONG tank to allow them to claim enough territory to not attack other tank mates.


The situation you are in at the moment is that you have juvenile fish. Juvenile fish tend to be much much much calmer than their fully grown adult counterparts.
Don't be fooled into thinking things will stay fine like they are now.

 

[21rm]

I know you asked bout the angels, but I definitely agree with Curisosity that you will need a bigger tank for them angels and the RTBS.
Is there any chance u could get a pic up of the 'predator fish', would be helpful to u to get it ID'ed

 

[Curiosity101]

The Bolivian ram will become increasingly stressed in that sized tank aswell.

They are primarily a bottom dwelling fish so will be in direct competition for territory with the RTBS.
And then there is the fact that they need at least an 80l LONG tank to have a sufficient territory for them to be happy.