Just a quick question. I've recently set up a new tank, given that my old 7ft set up was cycled 10 years ago it's been a while and I'm a bit rusty. Downsized to an Aqua One 110liter set up with 2 small wavemaker powerheads, LED lighting, heater and external filter. Starting off with ocean rock and sand, no friends about to seed some sand or rock from and none of my LFS selling live rock with one telling me it's banned now? Not sure how true that is. Either way given what sand / rock I'm starting with LFS suggested I use API quick start at double the dose and chuck in some food as I wouldn't be ready for cuc or fish for about a week, so I dropped some frozen misis shrimp in there, this was on the 16/8/19. My parameters since then have been; 16th - P.H 7.4, Ammonia 0, Nitrite 0, Nitrate 0 17th - P.H 8.2, Ammonia 0.25, Nitrite 0, Nitrate 5 18th - P.H 8.4, Ammonia .50, Nitrite 0, Nitrate 10 19th P.H 7.8, Ammonia 0.25, Nitrite 0, Nitrate 10 20th - P.H 7.4, Ammonia 0.25, Nitrite 0.25, Nitrate 10 I have been using API tests. My question is are things moving in the right direction and am I right to be worried about the fluctuating PH?