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I've a rimless reef aquarium without canopy, using an ATI Powermodule 6x54w T5 fixture. You can see some pics in my blog (it's also in english, in spite of I've to update it soon).

I'm thinking to supplement this with a LED bar in order to get the desired shimmer effect, not only for moonlight. The size of my tank is 120cm x 50cm x 50cm. What do you think it's the best option without fix it to the fixture, just put it over the tank?

Thanks in advance by your support. ...

Hi,
I'm finalizing the design of the light rack for my tank and would appreciate help on the following questions.
Tank is 88x34x30
Lights planned:
3 LB mini (16x16x7) 250 w with Coralvue dimmable ballasts and a couple of T5 lines on the front and back:

Points I need help with:
-Hanging height (I remember it was 16-18 inch from water to bulb) should I raise them more as I'm only using 3
-T5s in between the bulbs from front to back? would ...

In early May this year, my wife and I made the unexpected decision to move. This was just after I completed a project that include a new breeding room and dual in-wall tanks (245G and 180G). The tanks had been up for about six months when we decided to move. The allows both of us to cut a significant amount of drive time off of our commutes each day. We ended up moving to the new house in the first week of July. In the process of getting ready to move and actually moving I ended losing ...

Plumbing finsihed for the drains:
Returns will be over the top from the right side of the tank and will be made later on.
2 x 1.5" drains (one for backup)
1x 1 inch drain supplying fuge and water change tank.


Side view of the external overflow and plumbing to sump
...

I have an RO unit, 4 stage with a separate DI teed in to allow for non-DI drinking water. I am running a 150 gpd 98% renection membrane. It works very well (750+ tds in, ~20 tds out after RO, zero after DI). The problem is it won't shut off. The ASOV (auto shut-off valve) just pulses, never actually cuts off the brine water flow. I checked and rechecked the installation, using Melevsreef.com's troubleshooting guide. I replaced the ASOV, no help. However it did change. The original did nothing ...