Modding Marina Slim 20

abarb

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How should I modify the marina slI'm 20 filter? It already has an intake sponge.
 
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abarb

abarb

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Thanks for the video. I have some seachem denitrate. Can I use it instead? I know it won’t grow anaerobic bacteria though since it’s over 50 gph..
 

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abarb said:
Thanks for the video. I have some seachem denitrate. Can I use it instead? I know it won’t grow anaerobic bacteria though since it’s over 50 gph..
Yes that will work just fine also. De-nitrate is just a smaller version of Matrix. Actually it probably will grow some anaerobic bacteria.
 
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abarb

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Should I use lava rock too?
 
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abarb

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What about biomax? Or should I just use matrix.
 
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abarb

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Does this look ok for mechanical filtration?
 

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Cichlidude

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abarb said:
Does this look ok for mechanical filtration?
Yes but you could follow the video and put all that in the first cartridge space and use the last 3 for mesh bags of Matrix.
 
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abarb

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I don't think I need that much biological filtration since it will be a betta and possibly some ember tetras in a 10 gallon.
 

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abarb said:
I don't think I need that much biological filtration since it will be a betta and possibly some ember tetras in a 10 gallon.
OK, but you said it yourself, you cut the flow in half and now you have less than 50 gph for your anaerobic bacteria. That flow is plenty in a 10 gallon.
 
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abarb

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I think the sponge can also biologically filter. I can use one space for matrix and one for biomax or ceramic rings. I'll put some lava rock in the tank. Is that enough?
 

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abarb said:
I think the sponge can also biologically filter. I can use one space for matrix and one for biomax or ceramic rings. I'll put some lava rock in the tank. Is that enough?
I think you have enough info to make your decision now. Good luck.
 
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abarb

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Cichlidude said:
I think you have enough info to make your decision now. Good luck.
Thanks for the help.
 

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abarb said:
Thanks for the help.
Just to let you know, this is what I did with my Marina S20. I traced out the cartridges onto 3 mesh filter zipper bags and sewed them to make a perfect fit into the area in the S20. After doing this I never really used the S20 in my 10 gallon. I looked at my 75 gallon and one of the filters on it was a new Tidal 55. I said, 'what the heck'.

I ordered a new Tidal 75 and put the Tidal 55 on the 10 gallon after cutting down the intake tube. Put on an intake sponge and used the 3 bags from the S20 will filled with Matrix along with another 2 larger bags and put them in the Tidal 55. Turned down the flow to 80% of 250 gph which gives me 50 gph. Water is perfect at 0/0/0 with the planted 10 gallon. Anywho... that's what I did.
 

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