how much simpler can FOWLR be?

[Reef Pilot]

Not sure if you really need a bio pellet reactor in a FOWLR. Before I got my upstairs tank all cleaned up (was a 10+ year running tank), nitrates were as high as 100 ppm, and almost never below 30. Fish didn't seem to mind, and even had a bunch of softies and some LPS that did fine as well.

If you have a good skimmer, socks (or big sponge like I do now), change larger amounts of water (20%+), and have good flow, I would think that should be good. And no dosing, or GFO, etc,... just lots of live rock.

[lastlight]

If you guys are saying higher levels of phosphates and nitrates are ok for fish why would I need to do larger water changes?

I will have a ton of rock.

[Reef Pilot]

Well, water changes will help lower them, and since you won't be using GFO or bio pellets. Not saying you should do more often, just larger amounts. Just trying to keep it simple...

[lastlight]

yes simple is good. but pellets would be far cheaper than water changes. just wondering if that practice will be ok?

[Reef Pilot]

I have 2 tanks, one upstairs with my SPS corals, and a downstairs tank with just softies and LPS. I used to change my upstairs tank, and use the waste water to change my downstairs tank. I never did anything else to it, no dosing, GFO, bio pellets, or even running carbon. And all was good with it . Fish and corals were all happy. I would check the parameters occasionally but they weren't far out. And I just used Instant Ocean (still do).

So am not sure if you have another "designer corals" tank, but if you do, you could do the same. Then you can change the water at the same time and amount as you do with your fancy coral tank, but no additional salt costs.

I can't do this now, though, as I only use one sump for both tanks, because I only have 1 chiller, which is needed for the summer. Next fall, though, I might go back to separate sumps and only using fresh SW in the upstairs tank.

[matt_C]

I do small water changes.
25-50 gallons once a month if that.
In a system that's well over 1000 gallons
The other thing is if you let your levels get to high you'll have to clean the glass more often. lol

[lastlight]

Originally Posted by matt@concept

The other thing is if you let your levels get to high you'll have to clean the glass more often. lol

you've seen my arms thought right matt? i've got serious pipes a little glass cleaning won't be an issue.

[lastlight]

Originally Posted by Reef Pilot

I used to change my upstairs tank, and use the waste water to change my downstairs tank.

I change 15 gallons a week out of my 93 cube. That is a great idea! The water from that tank is near zero nitrates and pretty low phosphates.

Love it.

[jason604]

will running one of those hang on back filters like the fresh water ones work instead of a skimmer?

[lastlight]

Originally Posted by jason604

will running one of those hang on back filters like the fresh water ones work instead of a skimmer?

like a big aquaclear? i don't think so especially for a larger tank. those are good for some biological filtration but nothing next to a boatload of live rock. certainly not doing what a skimmer does (removes the organics from the water column completely).