Is it safe to clean anything on the filter when i do my wc, or intake its self besides replacing the pads? jsut wondering if claning the intake eventually will get rid of good bacteria ?
knifegill;4357564; said:Easiest gauge for that is your nitrAtes. They should be under 20ppm for most captive fish, probably 10ppm for wild-caught adult fish being moved into aquarium life.
You'll rarely need to clean your biological media if your pre-filter/mechanical filtration is half-decent. But, yes, a quick slosh in old tank water is perfect for most bio-media. Just feed lightly for a few days to give recolonization a chance to take place.
knifegill;4357668; said:First, read all the stickies about cycling. Those will answer most of your questions.
The nitrogen cycle and establishment of a becterial colony is what 'cycle' refers to. If your tank is cycled, ammonia is 0, nitrItes are 0 and nitrAtes are controlled by water changes or plants, fancy gadgets, etc. Water changes are your friend.
A prefilter is any stage that precedes another in the flow of water through a filtration system, but usually refers to mechanical filtration which is the removal of fine particulates in the water. Keeping these particles out of your biological chamber will ensure a great environment where your bacteria can do their job well.
Biological media is whatever the bacteria are growing on and is usually a combination of bio-balls, ceramic rings, even lava rock and legos may be used! The key is surface area. Options are almost unlimited, but usually include rough surfaces and small particles or fibers that will house bacteria pleasantly densely in three dimensions.
Filter cartridges are a combined effort at mechanical and chemical (charcoal) filtration. They clog easily and work best as purely mechanical filters because of this. But they will colonize and, if rinsed in old tank water regularly, make an acceptable place to grow your culture (the bacteria). Don't throw them away like the box says to. You need your bacteria and if you remove them, the ammonia will rise and could easily kill your fish.