fatheadminnow
Fish Aficionado
Yup, ammonia and nitrite should not go above .25 ppm. Above this, then there is only negative things that are going to happen.
-FHM
-FHM
your change into the biofilter provideed their filtration provided by the latest data provided is dish fry's post will not be enough to give the biological impact of keeping your fish without a dedicated biological f8l5erolic al filter.

Sorry about the previous post, looks like I was typing without reading what came out. Your change of filter will have removed some of the ability of the previous filter to process your water even if you moved the filter media over. A filter of a different size will not allow you to stock more but may help remove more solids from the tank's water. A fairly common misconception is that by overfiltering you can safely overstock a tank. It just is not true. Most tanks have filters that are far more than they really need for biological filtration and adding more is just a way to spend money. What a large filter can do is provide good circulation for planted tanks and remove some more of the visible dirt in a tank. If you have particularly messy fish, a larger filter can make the tank look cleaner, but that is about it.
A filter of a different size will not allow you to stock more but may help remove more solids from the tank's water. A fairly common misconception is that by overfiltering you can safely overstock a tank. It just is not true. Most tanks have filters that are far more than they really need for biological filtration and adding more is just a way to spend money. What a large filter can do is provide good circulation for planted tanks and remove some more of the visible dirt in a tank. If you have particularly messy fish, a larger filter can make the tank look cleaner, but that is about it.

small world! Good little tank you have there, hope it's all working out well for the fishes! Plenty of people on here to keep you in the know 
I have that same piece of tree root ready for my main tank, along with two of the same type as you posted as an example before you added picturessmall world! Good little tank you have there, hope it's all working out well for the fishes! Plenty of people on here to keep you in the know
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