Amonia troubles

**danthefishman** · 12-31-2006, 04:26 PM

i have a 65gal tank with two 20cm oscars and a 15cm catfish, and i cant get rid of a slight amonia reading.nitrate and nitrite are 0. ive reduced feeding, 60% water changes each week and adding filter booster and amonia remover. my tank has a ehiem cartrige filter and internal box filter. anyone have any suggestions?

**Fishguy2727** · 12-31-2006, 07:32 PM

What size tank is the filter rated for? Sounds like you need more biological filtration. Biowheels are the best but a canister with a lot of room for media is also good.

**Lady Hobbs** · 01-01-2007, 12:45 AM

Is your tank cycled? If it wasn't cycled and you added fish, you would first have the ammonia then nitrites and finally nitrates.

**jman** · 01-01-2007, 02:33 AM

that is true and it will end up causing other problems

**danthefishman** · 01-01-2007, 07:28 AM

the cartrige filter was a old one from the 240ltr tank i have and is good for 300l. it was already mature and when they went in the new tank about eight weeks ago i transferred all the water too. the internal one is made by the manufacturers and designed for the tank. its a jewel make, have u heard of them?

**Fishguy2727** · 01-01-2007, 03:17 PM

Yes, but I am not familiar with them at all. If you can I would add a Fluval 405.

**turbomkt** · 01-01-2007, 04:21 PM

If the built in filter is an overflow type wet/dry filter with bioballs you won't need any other filtration once things get seeded with bacteria.

Which Eheim filter is it? You should be able to ID it at www.eheim.com.