live rock

One of my oldest '"reef tanks" ,which was started with crappy cheap as* L.R. over one year ago, still has very little coraline growth on rocks (although I've spent hours scraping pink coraline off glass in same tank)! This 37g tank runs{2}55/65w pc. In other tanks, I have awsome coraline growth on L.R. due to several things(I belive).1:Tanks were stocked with average quality L.R. (AND) pieces of high quality prime L.R.(to help seed the rest)2:More light (although most coralines do not require/prefer bright lighting).3:good circulation. Think of coraline algae as a "plant", and you are the gardener. In order for you to produce a good garden, first you must sew your seed's(introduce multiple strains of coraline through multiple sources). Provide your garden with a good environment (light,calcium etc.),...and before you know it, your garden will flourish (and you will have earned your "purple" thumb)!
 
Live rock continues to mature for months. If it was properly cured, you should see some life like small tube worms and sponges and hopefully copepods. Maybe also some hitchhikers (so good, some bad) like crabs and micro starfish and lots of other possibilities. If you've any doubt, type hitchhiker id into the search here and see what happens! The speed of coraline algae growth is dependant on a number of factors. Live rock is kinda like planting a seed. You see an obvious sprout of life and then the changes are more subtle. Measured in months and years. You may want to try looking at it at night with a flashlight if you haven't already. You may have more life than you realize.
 
are you sure the rock is actual 'live rock' and not a different type i.e lava etc.
i started my current tank with 'reef bones' and within a few months coraline algae had started to apper on the rocks, also have you got any algae eating critters in there that might be slowing it down.
hope this helps
jamie
 
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