What bottom feeder, or other aquatic critter/plant/bug/thing would be effective at greatly reducing the solids build up that is going to happen here?
Hopefully there is s drain in the bottom somewhere that simply needs to be opened.
I was thinking more along the lines of an interim solution. Between cleanings.
As far as biofilters go... Probably the best DIY Cheap solution is an in tank floating RBC like the one you built from the book Small Scale Aquaculture. Could start out with one and debug, then add more down the road as needed.
What do you think? Air may be less to operate as far as power consumption goes and could help circulate some water from a couple feet down. It is eight feet deep, but want to keep the poo on the bottom. Not mix it up/break it down too much in the water column as a mechanical pump would do. TDS is a silent killer!
Can you post that information on the RBC for our friend here?
I have not figured how to copy and paste to forums from my TV yet. Probably need an app for that. (BTW: my laptop is sitting on the table about 15 feet away, but I need some seat time on this new gizmo. Voice posts/replies are on the agenda, but one headache at a time!

)
Thanks.