hi i have a 75 gallon tank with two marineland magnum 350 canister filters one witha carbon basket and one with a water polishing filter is this enough or to much i dont know and would the movement of a power head help or would that be to much current flow

Those filters are not sold here in the UK. I just been looking them up. Have they actually got any biological filtration? It doesn't seem to mention that at all, just carbon filtration. They are rated up to 100 gallons so would obviously be okay on your tank. However, it does seem that carbon filtration plays a big part in these filters. Personally, you don't need carbon in your filter. Yes, carbon can help clear the water, however it is generally used to remove impurities from the water, such as old medication.. Carbon needs to be changed on a regular basis. Mechanical and biological filtration does not need to be changed, it just needs to be kept clear of too much debris.

If you could give me a little bit more information about your filter, even better, if someone else actually uses one, they could give you their benefit of their experience, I have never used one of these filters before.

two marineland 350 should be lots of filtratin for a 75 gallon tank . the only thing i would look at changing is the cabon media and try to replace it with more biological media.

what would i have to use in the filter for more biological filtration would i use a pleated paper water polishing filter

i beleive you can use a fluval media that you put in place of the carbon in your filter basket

thanks alot ill look for that media

what kind of media is that and could i try filling the media basket with bio balls

yes you can fillthe media basket with bio balls or any other type of biological media that will fit