Hey,
the tank is 6,5ft x 21,6inch x 19,6inch/ 200x55x50cm.
I guess I will seperate at least one of the Dats to see if keeping them as a group of three is the problem here.
'Cause as I said in my 120 there is a single D.polota doing fantastic and being active.
Got floating plants in a tank neaby I can try to move them but I'll BET they will either be eaten by the Metynnis or will die due to a lack of light.
A pearsei would be a little big for the tank wouldn't it?
I could go for a group of Heros severum red spotted but I'd have to grow them out in another tank because I'd get juveniles (adults are damn expensive here).
And I don't know if the red ones would even look good in there because they are not looking natural at all.
With Geophagus the problem is that I do not have a clue which species I would consider keeping.
No Tapajos Red Heads, never again!
These fish terrorized the characins and angelfish in the 120 to the point I sold the whole group cheap as heck just to get them out of the tank.
Acarichthys would be nice but I can't find them for a good price (only ones are juvies for 33 Euros each), Altifrons would be great as well but I can't get those either
Nah I am not a fan of goldfish in tanks if I'd keep them it would be in my pond .
To me this tank is too small for balas/tinfoil or similar HUGE and active barbs or characins.