dissolved oxygen

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-...

Hello! Wish I was farther along before posting here, but alas my skills have failed me. First off, huge shout out to Rob from Robo-Tank: couldn't have made it this far without him for sure; his insight and support have made this experience really eye-opening and incredibly fun. As an...

Wanted to share a new method for achieving high dissolved oxygen levels in aquarium sumps. This Multi-Venturi is extremely quiet compared to a traditional venturi getting rid of the loud suction sound. For those Aquarists who struggle to achieve high dissolved oxygen levels or who are tired of...

Maybe this is well-known to everyone out there but it was news to me, thought it was worth a write-up. I have one of the Dissolved Oxygen probes from Neptune Systems which I've recently put on my system and I was looking at the readings and trying to figure out what was going on in the graph...

Neptune Systems Apex sells Dissolved Oxygen sensor. How many of you use that & do you find it useful? Do you aerate your tanks? Do you find the need for that? I have been aerating my tank at night within the sump but not sure if that's beneficial or not.