I have been cycling a 30g that I seeded with filter media from another tank. For quite a while I had 4+ppm ammonia, and 5 nitrite with no nitrates. Today I tested, and have 4ppm ammonia, 5ppm nitrite, and at least 80ppm nitrate. Should I leave it be until the ammonia and nitrite are 0, or can I consider it cycled, and do a pwc to bring toxic levels down?
Thanks in advance for the input.
Thanks in advance for the input.