oxygen saturation

Hi Reef2Reef community! I’m thrilled to finally introduce my new build, and I want to do things a bit differently from the start. Instead of the traditional "throw some bacteria and wait" approach, I’m planning to cycle the tank based on the research of Forest Rohwer regarding the Oxygen/DOC...

I don't have an oxygen test or meter, so I am hoping someone a little more high-tech can answer: can I keep a fairly calm display tank in terms of surface tension, if I have water trickling into a sump and am running a skimmer? Reason I ask is that my lagoon is best appreciated top down, but...

My husband and I have had our tank for almost a year now. All of our fish and tank mates we've had for about 9 months. 40G Breeder Long with Live Rock 3 powerheads (2 small, 1 big) Ammonia- 0ppm Nitrite- 0ppm Nitrate- 26.9ppm (we know its high, it's due for a water change tomorrow) Salinity-...

Hi, I cannot figure out what is happening with my 20 gallon nano. ph 8.3 Am 0 Ni 0 Na 10 -15 phos .01 canister and power head working surface agitation. Absolutely no 02 on testing. What could be taking all the air out of the water? Thanks. Ahab09

Hi All I’ve just installed a GHL oxygen sensor to my 750L reef tank, and I’m a little surprised at my O2 saturation levels , they have so far varied from 98% during the day and dropped down to a low of 88.4% now at 9:40 in the morning. It will be interesting to track these over the next few...

Does anyone have experience keeping a reef tank in the mountains? I have finally had enough of California and will be moving to the Nevada side of Tahoe within the next 2-3 years. I expect to buy a house around 7500-8000 foot elevation. There's not a lot of information online about how marine...