How much tank space is needed for one
pair of discus?
One pair of breeding discus will be comfortable
in 20 gallons of water. In other words, adult
discus that are under normal conditions do very
well in 10 gallons of water per fish.
Tankmates for Discus
What tankmates can be added with discus?
Discus are not community tank tropicals, so
there aren’t a great number of fish that could
realistically qualify as tankmates. Corydoras
catfish make an excellent choice, along with a
number of small tetras such as cardinal tetras
Covering the Tank
Should it be necessary to maintain a cover
over discus tanks?
What is the best drug for Hexamita?
For Spironucleus (Hexamita), which is often
implicated in head-and-lateral-line erosion, or
HLLE, the drug of choice is metronidazole, at
a dose of about 250 mg for 15 to 20 gallons for
Corydoras catfish such as Corydoras julii make great tankmates for discus.
We don’t cover our tanks because we’re in
and out of them often, but for the average
hobbyist, I’d strongly suggest a cover. Discus,
when startled, are good jumpers, and they can
quickly fly out of any uncovered tank. D