Thank you for that post.
An important one.
Always have more confidence, of course, when talking to someone who is actually doing it!
An air stone and a bubbler? I thought they were the same thing?
So you don't circulate and filter the water at all?
And you have fish in there?
And I see you've made 13,000 posts, so I guess you really know what you're talking about.
I'm not sure how to add pics to these posts but I can easily provide a link to some pics I've put up on google pics:
https://plus.google.com/photos/1107...s/5969261212226945841?authkey=CIDv1MW836iiggE
How would you advise me to manage my tub?
Seems to me the filters/pumps are doing nothing more than perhaps adding a little oxygen to the water.
And these UV algae killer things might be the easy way to clarify the water.
But the whole health of my system may be that algae. Kill it and nitrates rise and fish die.....?
So need an algae breeding place elsewhere.... Many DIY's on the web but all use lamps. Seems silly to me to use lamps when the power of the sun is there all day.
I did have filter water spilling out of the filter and pooling on a flat metal sheet over the tub. That spilt water rapidly turned a deep green and thickened. Obviously doing some major algae growing.
So perhaps a setup like that works in the outdoors? Water slowly spilling over flat surfaces exposed to the sun? Will aerate the water, could mechanically filter it (bed of sand maybe) and could grow bulk algae to clean up nitrates?
OR: like your tub, I need nothing at all?