Is this Dino's?

[Werbo]

Rob - thanks for chiming in.

No I have not tested for silicates. Is it a Salifert test kit?

I have changed 3 of the 4 filiters on my RODI within the last 3 weeks. I did not replace the filter on top (is that the membrane? i think).

Tyler

[Werbo]

My bulbs are 9 months old.
250 W DE
14K phoenix.

[Bloodasp]

Still has a bit of life on it, but i won't dismiss it as a culprit being that it's reaching it's lifespan. I would agree that it might be silicates, I have never tested for it so I wouldn't know what to recommend. The way I dealt with my Dino problem was increased flow closer to the sandbed and a goby.

[Reefer Rob]

Yes, Salifert makes a silicate test kit. From what I've read it's the place to start in your battle with dinos. Is it only on the sand? You could always go bare bottom

[Werbo]

So if I test for silicates in my RODI and find high levels I replace all my filiters. But in my tank what is my next course of action?
In other words, what safely decreases silicates within a reef tank?

[Werbo]

This stuff is not just on my sand but on my rocks, overflow and glass as well. If I blow off the rocks it grows back within 12 hrs.

[Reefer Rob]

Originally Posted by Tyler Werbowski

So if I test for silicates in my RODI and find high levels I replace all my filiters. But in my tank what is my next course of action?
In other words, what safely decreases silicates within a reef tank?

I've read forum threads where people have used aluminum oxide phosphate removers (Phosguard) and reported good results. Aluminum oxide absorbs silicates as well as phosphates. I know on RC aluminum is said to be a no no, but as far as I know that is unsubstantiated. In any case I would research it before I used it.

Test first, silicates may not even be your problem.

[burgerchow]

you need complete blackness in the tank for 3 or 4 days. Pitch Black, and don't feed during that time. Large motorcycle covers work well.