Or you come home on a friday night and notice that a few SPS are ticked off, so you procede to do a WC, change out the carbon, and test all water parameters knowing in the back of your mind that if you simply readjust the locline valve you tinkered with before work all will be fine tomorrow.....Len":3v2phw5u said:You spend a Friday night with your aquarium ... poisoning worms even.