How many gallon turnover for a 300?
- Thread starter a&a2
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mr. limpid
Active Member
I give you my opinion since no one will and then you'll get others to tell you I'm wrong. About 6 times an hour so about 1800 gph. Also you'll need to add to that for head pressure loss.
slice
Active Member
FWIW
and take this from one who owns a column tank which brings its own list of issues to resolve...and assuming you mean in your DT...
I believe it is flow that should be of concern, not turnover in and of itself.
In my 47g I once had a total of 3050gph but poor flow. The dimensions of the tank along with tall rockwork (what some here called phallic
) caused all that gph to be ineffective. Using 3 koralias, all I could do with placement is influence where the dead spots would be.
Now with an MP10 and 1 koralia (soon to be 2 MP10s), I have lowered the gph and have much better flow.
My point is that the answer to how much turnover for a 300 gal tank may be...."it depends"
and take this from one who owns a column tank which brings its own list of issues to resolve...and assuming you mean in your DT...
I believe it is flow that should be of concern, not turnover in and of itself.
In my 47g I once had a total of 3050gph but poor flow. The dimensions of the tank along with tall rockwork (what some here called phallic
Now with an MP10 and 1 koralia (soon to be 2 MP10s), I have lowered the gph and have much better flow.
My point is that the answer to how much turnover for a 300 gal tank may be...."it depends"
spanko
Active Member
My take on things from my readings.
Skimmer - flow through the skimmer section doesn't matter as the water contained in the skimmer at any point is what is being worked on and doesn't change with the flow on the outside perceptively. Overall its the skimmer's ability to skim...not the flow...that will remove junk out of water.
Sump - The location where the skimmer heater or other equipment not really related to filtration is kept ( other than maybe filter pads, socks etc.) Flow not really a concern here either IMO. I think 5 times the volume of the sump is what is the norm here though.
Refugium - Here is where you may want to keep some slower flow rates so that the water has a chance to circulate around the rock, algae etc and actually have time to be filtered out. I believe that 1-5 times turnover here is the norm, but depends on the type of macro algae used. I believe Chaetomorpha and Gracilaria require flow on the higher end for good health and growth while having a fuge for say pod or plankton production the flows could go up to 10 times volume.
Display - Unless such are literally ripping animals off their base, there can't be practically too much circulation. Think of a reef crest environment where the waves are actually crashing around SPS branches. Ont he other hand where there are drop-offs to the depths flow is much less. This is where the majority of the LPS so called soft coral are. The main thing about flow in the display is for the sake of the coral, and to keep detritus suspended so it can be used as food for the coral and also be removed by the filtration equipment. If detritus is just sitting on sand, rocks, coral it cannot be utilized.
You have asked a question looking for a simple answer that really cannot be given without some research in what you want to keep in different areas and their requirements. Research what it is you want to accomplish here.
These are my opinions, let's see what else we get!
Skimmer - flow through the skimmer section doesn't matter as the water contained in the skimmer at any point is what is being worked on and doesn't change with the flow on the outside perceptively. Overall its the skimmer's ability to skim...not the flow...that will remove junk out of water.
Sump - The location where the skimmer heater or other equipment not really related to filtration is kept ( other than maybe filter pads, socks etc.) Flow not really a concern here either IMO. I think 5 times the volume of the sump is what is the norm here though.
Refugium - Here is where you may want to keep some slower flow rates so that the water has a chance to circulate around the rock, algae etc and actually have time to be filtered out. I believe that 1-5 times turnover here is the norm, but depends on the type of macro algae used. I believe Chaetomorpha and Gracilaria require flow on the higher end for good health and growth while having a fuge for say pod or plankton production the flows could go up to 10 times volume.
Display - Unless such are literally ripping animals off their base, there can't be practically too much circulation. Think of a reef crest environment where the waves are actually crashing around SPS branches. Ont he other hand where there are drop-offs to the depths flow is much less. This is where the majority of the LPS so called soft coral are. The main thing about flow in the display is for the sake of the coral, and to keep detritus suspended so it can be used as food for the coral and also be removed by the filtration equipment. If detritus is just sitting on sand, rocks, coral it cannot be utilized.
You have asked a question looking for a simple answer that really cannot be given without some research in what you want to keep in different areas and their requirements. Research what it is you want to accomplish here.
These are my opinions, let's see what else we get!