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I did a small 10% water change yesterday, just to dilute the ammonia levels. Today, I did a nitrite test and there was a faint trace of nitrite.   So it looks like the cycle is just starting.   Two lessons learnt here 1) Don't overdose with ammonia, it inhibits the bacteria growth and 2) have...

Did another test today, Ammonia level the same ~2.4 ppm, no nitrites and no nitrates. :(

  No, the internal filter went into a new tank my daughter brought. So I suppose in reality it is a brand new cycle.

  Well it wasn't completely starting from scratch. It was a new filter but I had assumed there would have been a bacteria culture load on the gravel and tank decorations, perhaps not significant but enough to kick start the cycle.

Ok thanks Ch4rlie, I will do an immediate partial water change to reduce the ammonia level.   The ammonia level is now nearer the next colour interval down (i.e. 2.4 ppm).   I will test every few days to see how it goes.

  Ok I understand the ammonia level is higher than the recommended. But notwithstanding the errors in the test kit I would not have thought that 4.9 ppm compared to 3 ppm would have made much difference. Surely, I higher level of ammonia would mean the bacteria have more food available to grow...

Hi,   I started doing a fish-less cycle with a 36L tank. But after 3 weeks I decided to replace the internal filter for a 'hang-on-the-back' filter. I won't go into the details of why here. Therefore, I restarted the cycle and re-dosed with Ammonia. I checked the Ammonia, Nitrite and Nitrate and...

Any one have any idea?

Hi,   I am half-way through performing a fishless cycle and I have noticed some white spots on a decoration log. The 36l tank is 10 days into the cycle. Water readings are what you would expect during the cycle with NH4, Nitrite and Nitrates all showing. pH is 7.6 and seem to be stable. I have...

With BioOrbs you have to use the substrate media supplied. If you use small grain gravel of sand the filtering doesn't function correctly.

Yeah a good photo would help. Im looking for guppies for my tank so would be interested in knowing what kind you got,

  to the forum. There are a lot of experts around on this forum to help you out.

I would take the fish back to the shop where you purchased them.

  to the forum.

  Yes, thanks for the link. I had come across that list.

  OK. I did some research on the Internet and although some people said 10gal was too small other people said that they had kept a few mollies in that size tank with no apparent stress to the fish. But erring on the side of caution and in the interest of the health of the fish I will take your...

  Great. Just ordered that online and should arrive in a few days, Thanks.

Tank The Tank is a 35L (Arcadoia Ellipse), I would prefer a larger tank but space/location is a premium in our house. It has an internal filter (Classica Powerbio 200) and an internal heater (Aqua One 55W) set to 26C. Water The local area is hard water 17.3dH with a pH of 7.7 and a fairly high...

Hi,   Just joined the forum and thought I would say hi to everyone.   I'm just setting up a small tank and thought I would try a brackish tank with Mollies (Peocilia latipinna or P. sphenops). Looking for advice and other peoples experiences.   K.