sick discus

[cessna driver]

Hi,

came home for lunch to fined 1 of mine new discus flapping on it's side at the top of the tank, it was fine last night / this morning and seemed to be eating well (like a horse)

I have 1 other discus who's behavior has not changed, has been hiding since saturday when i got them and eating little.

There are also rummy nose tetras and BNCs in the tank, the tetras are breathing quite fast so i have put in an air stone, the BNCs seem fine.

temp is 28c

ammonia 0

nitrite 0

nitrate >10

ph 6.4

1/3 water change every day.

Is this likely a lack of O2 (I have several small plants) or could the fish be constipated as i haven't seen it do it's business?

(even now the other slightly smaller discus seems more active than it had been)

sick one is about 70 - 80mm tall (fin to fin) smaller is about 65mm

as i say it had been doing quite well in the past few days i have had them, and i hope my weeks of preparation don't go to waste.

Is there anything else i should/could do?

thanks in advance.

[oscnz]

My discus did that once and it was a lock of o2 as my pump failed and my co2 level was to high I just put a airstone in and he came right needless to say I run air in all my tanks

[Dave+Amy]

Put some salt to destress them and maybe a big waterchange would be good

[cessna driver]

just got home from work and the fish has come back to life a bit quiet but eating, even the little one is eating more now after hiding for 5 days.

i will salt them for good measures.

cheers

[phoenix44]

what is the temp like?

[cessna driver]

what is the temp like?

Temp is 28.5 only moves +/-0.5 during the day. Both discus are all good now and eating like horses.

I think since my plants haven't yet bushed up much it was a case of hypoxia with a lack of O2.

cheers