like i said before, its a magnum 350, not penguin 350. The mag 350 is a complete casinster style filter-BIG difference. Go overpay at elmers for some dead white fiji rock. Its hard to explain to the blind how salwater is supposed to look I guess. Come check us out. I can honestly save you $100’s - $1000’s of dollars. Its like buy rotten fruit from Giant Eagle and not knowing its rotten b/c you never seen that type of fruit fresh before. What type of lighting you got?
EDIT: BTW, hope you are making more progress w/ cars in 15 years than the tank, b/c that SW tank is about comparable to a Pinto.