Live rock colours

flower

Well-Known Member
Rock is , well... just rock. I think you are referring to Coraline Algae, which is a crusty hard algae that grows on live rock. It's very pretty and much desired. Red, pink, blue, purple, yellow and green..oh and orange. The orange turns red ... the pink turns purplish blue... the yellow turns green. Most see the pink in splotches first...which later will become blue purplish, and the reds will turn almost velvet color and very dark ( I had the deep red)...all coralline is hard and crusty. There is one type that actually branches out in scales.
Keep your calcium parameter between 450 and 500 for optimum coralline growth. You do need to seed the coralline if there is none already in the tank on the rock....to do that, take a rock already covered with it, and in front of a power head, scrape off the algae with a hard brush (marked fish only) That will send spores out. Coraline likes plastic better then anything else, so the power heads and intake/output tubes will be covered first. The good thing about that is the coralline will cause the plastic stuff to blend in with the décor, and not look so obvious.
 

btrs

Member
I saw a furmola that does that at live aquaria, it supposedly "colors live rock"
 

flower

Well-Known Member
Quote:
Originally Posted by BTRS http:///t/395605/live-rock-colours#post_3522676
I saw a furmola that does that at live aquaria, it supposedly "colors live rock"
I don't really believe you are serious...but just in case you are....
They do sell an additive called "Purple Up" it's just a fancy name for bottled calcium. You have to check your calcium levels, and if it is under 400. you can safely add the purple up, or save your cash and purchase liquid calcium...either one is great for keeping your calcium level at 450 to 500, which is what coralline needs to grow.
Please understand, if none of your rocks have coralline, you don't have any that can spread...you have to have some coralline on at least one rock to seed the tank with it. Put the rock on front of a power head and use a firm toothbrush (marked FISH ONLY) and rub the coralline with the brush, this releases the spores to spread.
 
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