A few years ago (probably 4-5yrs ago) I purchased a biowheel [Marineland BIO-wheel 30pro] for 55gal saltwater tank, after I plumbed into my system, I realized I didn't have enough water pressure to operate it. The water would come into the biowheel drip bar and the water would drip out of the first 2 or 3 holes then cling to the sides and run down back of the unit, missing the biowheel completely. After a few days I decided to remove it till I got pump that could power it better, well I never ended up getting the pump and basically the biowheel went into storage.
Recently I purchased another 55gal tank and will be using it for a freshwater setup and I am thinking of using this biowheel, I thought I cleaned the biowheel of all presence of salt and salt water chems, before it went into storage, but when I pulled it out of the box this morning there are salt crystals all around the biowheel (not on the wheel itself just all along the housing, the wheel still looks like it was never used) I cleaned it up today and I believe I removed the salt deposits. My question is.. would it safe to use the wheel, or should I just replace it and not take any chances ?
Thanks for any suggestions