Help!!! How to keep your Marshall Rocks purple and red?

[tomocean]

Welcome aboard! What you are experiencing is one of the challenges of reefkeeping -- algae control. It is normal during tank cycling for brown (and green) diatoms to appear. Over time, if you keep your water parameters in good shape (8.1-8.3 Ph, 8-12dkh Alkalinity, 400-450 Calcium, 0 (or near) Ammonia, Nitrite, Nitrate, Phosphate) you will find that the coralline algae will start to return. You will probably also notice a number of other macroalgae species starting to grow. Just be patient and keep on top of your maintenance.

 

[pathos]

in addition to what tomocean says, you need to dose kalwasser and supplement with a good calcium/alkalinity buffer such as B-ionic or Kent's Tech A&B. That combined with good water quality and strong lighting (VHO, PC or MH) should have you in ship-shape in no time!

cheers, pathos

 

[calboyz]

Tomocean and Pathos, Thank you for your suggestions.

 

[calboyz]

I have a new 125 gl tank for about a month. I recently added some live Marshall Rocks to it and noticed the rocks start turning its color from red and purple to brown.

Any advises will be greatly appreciated.