Just because they show their stress bars, does not mean they are stressed or something is wrong. I think of them as mood bars.
What other fish are with it? What type of discus?
As everyone else stated, discus are best kept in groups. They are shy, nervous fish and are usually raised in groups. If kept singly, they may hide often and not eat, become ill or even die. Just think of it in safety in numbers.
Edit: modified this post...
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125 gal (473 liter): Low Tech (1.5wpg PC for 10 hours, no CO2/ferts, gravel substrate), Equipment (72" Coralife PC, Eheim Pro II 2128 w/built in heater, FilStar XP3 w/Hydor ETH201 inline heater), Fish (6*Discus, 2*Angel, 5*Clown loaches, 4*L-018 Gold Nugget pleco, 1*L-260 Queen Arabesque pleco, 7*Cories, Farlowella cat)
Last edited by crazie.eddie; 03-28-2008 at 07:46 AM.
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