filtration for FOWLR

I would have the sump set up so that raw display tank water feeds from the display into the skimmer section, water then exits the skimmer section and goes to the refugium, and water then passes thorugh filtersocks after exiting the refugium before it is returned to the display. Leave enough space in the return section so that you can also add a pump or two to run reactors for pellets, GFO, or carbon should you choose to. An SRO 2000 would be a perfect fit for your system.

Edit: Changed the suggestion on sump design.


Would it not make sense to put the filter sock on the drain line that goes into the skimmer department?
 
Would it not make sense to put the filter sock on the drain line that goes into the skimmer department?

Some people do, and but I think it is better not to do so and to give the skimmer the first opportunity to pull out as much stuff as possible from raw display tank water. This is particularlly true if you have an oversized skimmer so that you take full advantage of the skimmer's abilities to mechanically filter out as much as possible before utilizing your other filtration. Basically, start with a less fine mechanical filter in the form of the skimmer and then later use more fine mechanical filtration in the form of the socks. Also, once the water passes through the refugium, there is a good chance that some organic debris from the refugium may get into the water which you would want to remove with socks before returning the water back to the display.
 
I'll preface my post by conceding I haven't kept a FOWLR for many years. So my advice will be partly based on recollection of what works well IMO, and bearing in mind that you're keeping hardy fish without corals. So here goes...:p

High flow within the DT keeps crap in suspension so that it can reach your skimmer. I'd have a powerful skimmer and I wouldn't use carbon dosing. Not because I don't think it works, but because its tempting as a new hobbyist to embrace concepts you may not fully understand. A lot can go wrong in carbon dosing if you're not paying attention IMO, so its best to get a handle on maintaining good water quality first. Then you can work on fine tuning it - and dosing is just one way that can be achieved. :beer:

DSBs can crash. But IME when they do its usually because they haven't been set up properly to start with, used the wrong size grain & depth, not enough micro fauna to work in the bed, a precipitation event has occurred, etc.. You can also encourage a crash if you allow the bed to act as a nutrient sink. eg predator tank + heavy feeding + low flow + wrong grain size... you get the idea.:(

This suggestion sends a shiver down my spine, but...If you're going to keep predators, then maybe a true trickle filter wouldn't be a bad idea. The highly oxygenated bioballs provide an ideal home for nitrifying bacteria. But you'll need to get the balance right or you'll end up with plenty of nitrate. While macro is useful in exporting both phosphate and nitrate, I wouldn't keep it in an environment where decaying fronds etc accumulate. Again, excess nitrate is added to the system.

Finally, a lot of fish will tolerate high nutrient levels but some won't. Many nuisance algae and cyano blooms seem to thrive when nutrient levels are high and water parameters fluctuate. Guess what I'm getting at here is that a lot of thought now, will prevent a lot of headaches for you later.

So all the best with your new tank!
 
liveaquaria is actually a very reliable source
"The Undulated....A 180 gallon or larger aquarium with large pieces of rock to form caves is ideal. It will rearrange the aquarium landscaping and rocks. It vocalizes using a "grunting" sound. It is a hardy fish, but aggressive towards other fish." -Liveaquaria

This statement is not too reliable and vague considering other species less aggressive get more warning in detail. I would think, saying this fish will kill any fish that does not kill it or is way too big for your tank does not sell this fish.

But, I really wanted to say great thread, I read through this and gained much insight to filtering my DFOT, "dirty fish only tank".
 
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