Live rocks and 2.5 inch sand. 48 inch tank with 24 in sand tank. With skimmer (Marco AS100 + AS150) The PH has increased from 8.2 to 8.5 in about 3 weeks time.
Anyone can suggest what is happening? All the fishes are OK but sometimes has cloudy eyes and and smail white spots. (My doctor fish will eat them all!)
Many Thx! (Sorry! Can't type chinese as my writing pen is broken!)