I know that there have been other threads on oxygenation and skimmers but I was wondering on a practical level if people with larger tanks who go "skimmerless" have issues with dissolved oxygen levels?
I have a 195 gallon (72x26x24) aquarium with an 80 gallon sump (60x18x18). I have about 175 pounds of Fiji live rock in the display and 2 large blocks (8x8x4) and 2 small blocks (8x8x1) of marinepure in my sump. My phosphates and nitrates were undetectable (also running GFO and using a skimmer) . However, I was having a lot of trouble keeping SPS colored and LPS alive and at the same time was fighting red turf algae that my rabbitfish would not touch (he prefers pellets). About 3 months ago I made major changes, took out the skimmer and gfo, started growing cheto in my sump instead and added two tangs to help with the algae. Since then my corals are thriving and the turf algae is better controlled by the new tangs. But am I missing anything? Should I be concerned about having sufficient dissolved O2 without running a skimmer? If so, what should I be monitoring?
Current fish are:
3 Carberryi Anthias
2 skunk clownfish
Blue Spotted Rabbitfish
Small Desjardini Sailfin Tang
Small Orange shoulder tang
Longfin wrasse
Upsidedown goby ( Bryaninops nexus)
Blue Mandarin
I plan to add two more small wrasses and a pair of Bellus Angels in the near future.
Phospate 0.00
Alkalinity 7.2
Specific gravity 1.025
Temp 77-79
ph 8.1-8.45
ORP 415-430
My powerheads are 2 vortech MP40s and one neptune WAV. I use a calcium reactor.
I have a 195 gallon (72x26x24) aquarium with an 80 gallon sump (60x18x18). I have about 175 pounds of Fiji live rock in the display and 2 large blocks (8x8x4) and 2 small blocks (8x8x1) of marinepure in my sump. My phosphates and nitrates were undetectable (also running GFO and using a skimmer) . However, I was having a lot of trouble keeping SPS colored and LPS alive and at the same time was fighting red turf algae that my rabbitfish would not touch (he prefers pellets). About 3 months ago I made major changes, took out the skimmer and gfo, started growing cheto in my sump instead and added two tangs to help with the algae. Since then my corals are thriving and the turf algae is better controlled by the new tangs. But am I missing anything? Should I be concerned about having sufficient dissolved O2 without running a skimmer? If so, what should I be monitoring?
Current fish are:
3 Carberryi Anthias
2 skunk clownfish
Blue Spotted Rabbitfish
Small Desjardini Sailfin Tang
Small Orange shoulder tang
Longfin wrasse
Upsidedown goby ( Bryaninops nexus)
Blue Mandarin
I plan to add two more small wrasses and a pair of Bellus Angels in the near future.
Current parameters are:
Nitrate 0.65 ppmPhospate 0.00
Alkalinity 7.2
Specific gravity 1.025
Temp 77-79
ph 8.1-8.45
ORP 415-430
My powerheads are 2 vortech MP40s and one neptune WAV. I use a calcium reactor.