tunicate

http://www.dailymail.co.uk/news/article-2355626/Chinese-beachgoers-frolick-green-algae-keeps-returning-despite-20-000-tonnes-removed-days.html Somewhere the Incredible hulk would feel at home?

upz

Actually, I use netting from Home-Fix or Selffix hardware store for the overflow. It does a fine job.

Cannot cover...water surface is meant for O2 exchange mah....LS not enough oxygen sibeh siong one.

Yah, my neighbor's dog started throwing up after a walk downstairs, and the cats are hacking away as if balls of hairs in their throats. Wondering how're your LS holding up to the haze.

upz

Sand taken. Thread close.

Have a bag of dry sand to give away. Never used before. 9.5kg Collection location in the East near Katong. PM me for address if interested

One more set available, $80

upz

upz

upz

upz

1 set taken. Left with one more set. Any takers?

You're welcome simmonsim. Cheers

In that case, you can move the blue & red baffles to the left so that the skimmer & reactors are together in the 1st compartment. (provided all these equipment can operate properly at the skimmer's required water level.) Then make the 2nd compartment between the red & green baffles your refugium for chaeto. As you'll be having lights shining down into this compartment, use darken glass for both green & red baffles to minimise light transmitting into 1st & last compartments. This would reduce unwanted algae growth. Lastly, install a filter comb on top of the green baffles to minimise break away chaeto from choking your return pump.

If you want a biological way to remove nutrients & breed copepods at the same time, then cultivating chaeto rather than UAS may be more suitable for your requirement.

Retail price $170 per set. Now selling at less than half price $80 per set.

In addition, I found out that external return pump is so much more troublesome to dismantle for cleaning. (Made worst if access is limited) There's always a worry for water leakage from these joints. Overall, I find that the benefits of reduced heat transfer into water does not overcome the ease of pump maintenance & water leakage risk.

I doubt the regular cleaning on the UAS allows copepods to thrive.

The setup in the diagram was my previous sump setup. I've learned from its weakness. i.e. - Ease of access for sump maintenance is important. (Difficult access will discourage maintenance frequency, resulting in poor water parameters.) Example: I would love to have an extra cabinet door on the side to easily change filter socks. - Separate flow rate into refugium is too slow & it affect chaeto growth. Refugium also collected much unfiltered detritus that requires regular cleaning. Below is a possible setup for your rectangular sump layout. The blue baffle eliminates micro bubbles. The red baffle control water level in the skimmer chamber. The green baffle control water level in reactor chamber. Note: - Red baffle can be removed if both skimmer & reactors can operate on same water level (controlled by green baffle). - Blue baffle can be removed if there's issue of micro bubbles. - Calculate the extra holding capacity of your sump design to cater to display tank back flow during power outages.(IMPORTANT)

item sold. thread closed. Thanks

I don't think you need chaeto if UAS is functioning properly.

Sorry about that. Here you go.

upz