image for my pair

[zerocoolv]

the 2 discus that i think they paired up they are not eating much is that ok before they used to eat normaly

i put them in another tank alone and what i observe they r so quite not eating i did put the sawpinig cone i put internal filter and i put in it ceramik cotton and peat the heater at 31c
even they seems healthy but not moving much taking a corner and sit the tank is 100 liter 65x40x45

temp at 87
ph acidic 6.0 6.2
gh soft 70 75
kh low 0-40
wc 50 % every 2 days every day depends
feeeding terta bits breader- brine shrimp- beef heart mix
any help any notes any advices


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