I have 75g tank. I have (2) 110 aquaclear and Eshopps 100 wet/dry filter running. I run the tank at 78 degrees. The AMONIA is zero, the nitrites are zero, ph is 7.4, nitrates 30. I have the following fish:
red severum - 4 inches
Gold severum - 3.5 inches
2-gold gauramis- 3 & 3.5 inches
2 - blue gauramis- 2.5 inch each
3 - blue rams - 1.5 inch each
2- Geo topagos- 2 inch & 3 inch
2 - Geo brasslaneze- 2 inch & 2.5 inch
7 - Roseland barbs - 1.5 to 3 inch
4- striper cats - 2 inch each
2 - bristle nose albino plecos - 1.5 & 2.5 inch
3 - clowns - 1.5 to 3 inch
I would like to know when would any of the fish get to be too big for the tank? I do not have a larger tank. However, I do have a very cooperative LFS that would make exchanges.
Your suggestions of when to exchange and what to exchange for would be appreciated.