it took my 3 times but my filter system pipe has no leaks , i went with pool hoses and fitting , got them at pench of penny flex able hoses and for tempory i have my filter system out side the stand so can play with it easy , im going have 2 ,, 7 inch round socks 16 inch long , i had sock on each side of my tank , which is a 55 gallon tank and had the pump in middle to start off , the pump i have is not big enough for the whole tank , its 1200 gallon an hour will have 2 of them soon ,,, and if i need bigger thats down the road , but had few problem , i have to climb in my stand to clean or replace the socks , so moving both socks to 1 end , which will be right at the door , so can clean easy , and putting my pump at the other end , and will add a sponge with glass to block off the pump so will add a 2nd filter in a way