Ammonia... too high?

[LauraWebb]

Im on day 14 of fish in cyclinh. 1 Betta in 130ltr so I know its going to be slower than usual. My ammonia has started to finally rise. It's sitting on .50ppm is this an ok level whilst cycling, fish in? Should I do a partial water change? Nitrites and nitrates still on 0ppm

[Bombalurina]

Yes, you do need to do a change. Anything above 0.25ppm is unsafe during a cycle.

If you have this option, I would remove the betta to a temporary tank and do a fishless cycle. It would be much quicker and better for the fish. :)

[Mo]

Atleast a 50% water Change would be needed to lower the level to an exportable amount, ideally you should do a 90% water Change to lower it to around 0. Doing this would definitely save you lots of time from doing multiple ones later on fri when it automatically rises from .25 to something higher

[LauraWebb]

Thanks. The 90% makes sense. Ive done 2 x 25% in the last 12 hours & it didnt drop it all! Ill do another 40% in a few hours when I get back from hospital.