Second this. Also, check if any tankmates are bullying 'em. Even small fish can be jerks sometimes.
discus tank setup for shy fish
Re: discus tank setup for shy fish
Re: discus tank setup for shy fish
Your water params look good, but how's the noise level? Loud sounds or vibrations can stress 'em out. Keep the tank in a quiet spot if possible.
Re: discus tank setup for shy fish
Thanks for all the advice, gonna try the floating plants and smaller water changes first. Appreciate it!