Flow Through DSB

[bioload]

Day 1



ORP (DSB) = 270mV +/- 10mV
pH (DSB) = 7.29
Drip rate = 0.83 drops/sec

Notes: ORP gradually climbed back up from the initial drop when sand was added. Not sure why this is but I'm thinking may have something to due with flushing out whatever may have been in the sand. Sand was rinsed and stored in a bucket for several week before use.

[naesco]

Live rock is good.
Deep sand bed is good.
Doing at least a monthly water change is good.
Getting rid of the bio wheel would be good
And keeping the nitrates down is good which all of the above will do.
It is nice to see that you are really trying to provide the optimum conditions for your coral.

I think you should take a little time to research the optimum conditions for your fish as well though.

For example, tangs require the longer tanks (6 footers) that larger tanks provide.
Your is four.
Tangs are swimmers. They spend all day swimming back and forth and thus need the swimming room.

[bioload]

Some more intersting links:

Dissolved Oxygen

Oxygen (O) and water

Water deaeration

LOW OXYGEN AND POND AERATION

Dissolved Oxygen and Aquatic Primary Productivity

Autotrophic Biological Denitrification with Elemental Sulfur or Hydrogen for Complete Removal of Nitrate-Nitrogen from a Septic System Wastewater

[bioload]

Flow Diagram:

[bioload]

No Nitrate tests tonight. Did one earlier in day, and I'm beginning to get the impression that this may take a while.

ORP: 187mV
pH: 7.19
Drip Rate: 0.8 drops/sec

[no_bs]

Probably 4-6 weeks.

[bioload]

When I chaecked the tank this morning I noticed something strange. There was a increase in the ORP and pH readings which were significantly higher than the night before. Did not get a chance to check the drip rate but it seems to be unchanged.

ORP: 291mV
pH: 7.81

Not sure if this it a trend but I will make it a point to check in the morning and before lights out. Does anyone have any ideas what may have caused the increase overnight?....normal?