Rapid gill movement ? Help :-( !

[Fintasticfanatic]

All our fish seem to be struggling at the moment . Rapid gill movement . Molly's , cardinals, sterbai corys, harlequins, clown loaches.
6 ft 650 litre tank, running fx5 filter. All water readings 0 ... Planted tank , sand substraight . One sign of something being wrong apart from the gill problem is one of our 5 loaches is very skinny and lethargic although he is still feeding . Running co2 and uv filter too . All on timers .
Any ideas ?

 

[RussellC]

All our fish seem to be struggling at the moment . Rapid gill movement . Molly's , cardinals, sterbai corys, harlequins, clown loaches.
6 ft 650 litre tank, running fx5 filter. All water readings 0 ... Planted tank , sand substraight . One sign of something being wrong apart from the gill problem is one of our 5 loaches is very skinny and lethargic although he is still feeding . Running co2 and uv filter too . All on timers .
Any ideas ?

If your water parameters are good, my very strong suspicion is poorly oxygenated water.

CO2 can certainly contribute to this problem.

I would turn off the CO2 completely, and increase water surface agitation as much as you can.



Good luck!

 

[Chiroptera]

Yeah, the CO2 may be the problem if there's not enough oxygen in the water. Could you add an airstone for now?

 

[aqua_chem]

Do you have a drop checker? What's your bps?