150g fish only tank, any special care??

sensei · 10/10/2017, 09:24 PM

I am quarentining several fish for this new fish only tank.
I have only tanks with coral and fish and I do the regular maintanance with water changes, in addition to dosing alk and cal and testing several other parameters

do fish only tanks require any special care?
I believe no water changes are needed?
tank will be bare botton with a skimmer and live rock.

I am not sure if a refugium would be needed for such tank or if I should put a GFO reactor with lots of GFO in sump to keep PO4 at cero and avoid algae problems??
Thanks for your comments

tjm9331 · 10/10/2017, 09:46 PM

Is this FO or FOWLR?

Either way I don't thinks it's a good idea to nix water changes completely. You can certainly lessen the frequency to probably once a month but I wouldn't cut it out all together.

To answer your original question though, FO or FOWLR tanks do not require any special care I feel they are the easiest salt water setups to deal with maintenance wise

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alton · 10/11/2017, 06:32 AM

I would contact Huma Guy, he has expensive fish in FO tanks, I am not sure why you would dose in a tank that has nothing to use it?

sensei · 10/11/2017, 06:52 AM

to my understanding FO or FOWLR is the same and it means it is a fish only tank, correct?

yes my tank will be fish only.
I have never done a fish only tank this is why I have all the questions listed above

thanks

benjammin03 · 10/11/2017, 07:33 AM

FO = Fish only
FOWLR = Fish only with live rock

Dosing is done for the benefit of corals. There is no need to dose if you don't have any. I would still keep water changes as part of your routine. A refugium could still be a beneficial. You could consider it as a more natural option to using GFO.

sensei · 10/11/2017, 10:17 AM

Thanks for your answer,
dt will have fish and rocks so it is a FOWLR.

I guess FO also have live rock in sump but not in dt correct?

why would it be better to consider a more natural option like a fuge for nutrient reduction instead of GFO?

I ask becuase the goal will be only to avoid algae, so IF you put sufficient GFO you should be able to strip PO4 from water thus making it difficult for algae to grow?

thanks for your answer

humaguy · 10/12/2017, 07:03 AM

Quote:

Originally Posted by sensei

Thanks for your answer,
dt will have fish and rocks so it is a FOWLR.

I guess FO also have live rock in sump but not in dt correct?

why would it be better to consider a more natural option like a fuge for nutrient reduction instead of GFO?

I ask becuase the goal will be only to avoid algae, so IF you put sufficient GFO you should be able to strip PO4 from water thus making it difficult for algae to grow?

thanks for your answer

FO- contain coral skeletons or coral inserts, no live rock, the fish are the true centerpeice.
FOWLR- live rock, regardless of location in tank of fuge.

To avoid algae, reduce the amount of time your lights are on, and keep water clean.

sensei · 10/12/2017, 10:17 AM

thanks for your answer,
in FO since there is no live rock anywere, were is the biological filter?
ceramic media?

tjm9331 · 10/12/2017, 11:14 AM

That's correct, bioballs, ceramic media, the large ceramic blocks that folks put in their sump all can be used for bio-filter

And GFO only removes phosphates, the idea of a fuge or even just a sump with chaeto or an ATS is to help remove both phosphates and nitrates. both of which feed algae

10/10/2017, 09:24 PM	#1
sensei Registered Member Join Date: Nov 2014 Posts: 613	150g fish only tank, any special care?? I am quarentining several fish for this new fish only tank. I have only tanks with coral and fish and I do the regular maintanance with water changes, in addition to dosing alk and cal and testing several other parameters do fish only tanks require any special care? I believe no water changes are needed? tank will be bare botton with a skimmer and live rock. I am not sure if a refugium would be needed for such tank or if I should put a GFO reactor with lots of GFO in sump to keep PO4 at cero and avoid algae problems?? Thanks for your comments __________________ 470g DT SPS dominated (600g system) - five 400W MH, BK 250 & BK300 SM Skimmer 150g mixed reef - XR15w Pro, 90 g Coral quarantine - XR15w Pro, 150g FOWLR tank, 20g TTM Fish Qt

10/11/2017, 06:52 AM	#4
sensei Registered Member Join Date: Nov 2014 Posts: 613	to my understanding FO or FOWLR is the same and it means it is a fish only tank, correct? yes my tank will be fish only. I have never done a fish only tank this is why I have all the questions listed above thanks __________________ 470g DT SPS dominated (600g system) - five 400W MH, BK 250 & BK300 SM Skimmer 150g mixed reef - XR15w Pro, 90 g Coral quarantine - XR15w Pro, 150g FOWLR tank, 20g TTM Fish Qt

10/11/2017, 10:17 AM	#6
sensei Registered Member Join Date: Nov 2014 Posts: 613	Thanks for your answer, dt will have fish and rocks so it is a FOWLR. I guess FO also have live rock in sump but not in dt correct? why would it be better to consider a more natural option like a fuge for nutrient reduction instead of GFO? I ask becuase the goal will be only to avoid algae, so IF you put sufficient GFO you should be able to strip PO4 from water thus making it difficult for algae to grow? thanks for your answer __________________ 470g DT SPS dominated (600g system) - five 400W MH, BK 250 & BK300 SM Skimmer 150g mixed reef - XR15w Pro, 90 g Coral quarantine - XR15w Pro, 150g FOWLR tank, 20g TTM Fish Qt

10/12/2017, 10:17 AM	#8
sensei Registered Member Join Date: Nov 2014 Posts: 613	thanks for your answer, in FO since there is no live rock anywere, were is the biological filter? ceramic media? __________________ 470g DT SPS dominated (600g system) - five 400W MH, BK 250 & BK300 SM Skimmer 150g mixed reef - XR15w Pro, 90 g Coral quarantine - XR15w Pro, 150g FOWLR tank, 20g TTM Fish Qt

10/10/2017, 09:46 PM	#2
tjm9331 Registered Member Join Date: Jun 2016 Location: Massachusetts Posts: 340	Is this FO or FOWLR? Either way I don't thinks it's a good idea to nix water changes completely. You can certainly lessen the frequency to probably once a month but I wouldn't cut it out all together. To answer your original question though, FO or FOWLR tanks do not require any special care I feel they are the easiest salt water setups to deal with maintenance wise Sent from my iPhone using Tapatalk

10/11/2017, 06:32 AM	#3
alton Registered Member Join Date: Jan 2005 Location: Zuehl, Texas Posts: 4,460	I would contact Huma Guy, he has expensive fish in FO tanks, I am not sure why you would dose in a tank that has nothing to use it?

10/11/2017, 07:33 AM	#5
benjammin03 Registered Member Join Date: Mar 2017 Location: St. Louis Posts: 88	FO = Fish only FOWLR = Fish only with live rock Dosing is done for the benefit of corals. There is no need to dose if you don't have any. I would still keep water changes as part of your routine. A refugium could still be a beneficial. You could consider it as a more natural option to using GFO.

10/12/2017, 11:14 AM	#9
tjm9331 Registered Member Join Date: Jun 2016 Location: Massachusetts Posts: 340	That's correct, bioballs, ceramic media, the large ceramic blocks that folks put in their sump all can be used for bio-filter And GFO only removes phosphates, the idea of a fuge or even just a sump with chaeto or an ATS is to help remove both phosphates and nitrates. both of which feed algae