Population per tank capacity

[guyschwartz]

I once read as a rule of thumb that you should allow one gallon of water per one inch of fish.
Is this same rule of thumb true with Discus? I have a 100 gallon tank. The fish seem happy and healthy.
Thank you.
Guy

[Carol_Roberts]

Ten gallons per adult discus in the rule.

[guyschwartz]

Ten gallons per adult discus in the rule.

Thank you for your reply. Follow-up question, is adult discus defined by age or size. If age how old? if size how big?
Thank you
Guy

[Carol_Roberts]

When we are talking about stocking levels I mean size. Lets say average adults range between 5 - 7 inches

[April]

how many do you have? and bare bottom or other species??
also depends on your water changes and experience. more experienced people can push the envelope a bit..
but for beginner best to stick to 10 for your 100 gallon. less problems . you could grow out more small ones.. then choose the best ones to keep.
a group of 10 is good. or 12 juveniles.

one gallon of water per one inch of fish??? This confuses me !!


correct me if i am wrong.....


Can I keep a 10" oscar/pacu fish in 10 gallon tank?