Freshwater And Marine Filtration

[MojoDex]

ive been reading up on filtration for a brackish tank im going to be setting up next week, i came across something that said the filter should be marked for fresh and salt water use. got me thinking whats the difference

i know eheim do specific filters for fresh and marine but what is the actual difference surley there cant be all that much to it can there?

 

[SkiFletch]

As far as the filter is concerned, it has to be made of proper metals to tolerate saltwater. Has to have high-grade stainless steel if any is used in the design or be a pure synthetic design. Cheap steel or brass will corrode quickly in a saltwater environment

 

[MojoDex]

makes sence but ive read that even stainless steel will rust in salt water, hell ive seen it rust in freshwater

 

[Gandalf-LoJ]

It all depends on the grade of stainless steel. The better the quality (and higher cost normally) the more corrosion resistant it is.

Some good info on stainless here;
http/www.aalco.co.uk/technical/stainless.html

and the wiki entry http/en.wikipedia.org/wiki/Stainless_steel

 

[MojoDex]

i work at a structural steel fabrication company mate i know all about stainless i regularly steal it for my tank helps with standing rocks up lol!