Anyone else have the "problem" of not getting any coralline algae growth?

[Canadian]

Thanks for the replies.

I'm still leaning toward the lack of coralline in my case being the result of high nutrients that aren't being picked up on testing. As I mentioned earlier, when I blast my rock I stir up the detritus and it gets caught in some of the hair algae on the LR which I think is what feeds it, but there could be some unmeasured nutrients in the tank that are also contributing to it. I also think this is why briefly adding sand lead to a brief explosion of coralline - the sand acted as a nutrient sink while it was in there briefly.

My Ca is quite high as well Brad (often testing at 500+) and I do notice I get more encrusting than vertical growth. I might try to change my dosing on my dosing pumps to see if I can bring it down a bit and see if it has any effect.

[brizzo]

Originally Posted by i have crabs

calcium polygluconate which is what is used in most liquid calcium supplements is supposed to be the best way to grow coraline

I'm going to put support to that, personally my tank maintains around 380ppm with consistent water changes. Once I started dosing small amounts of kent liquid calcium once a week, I got coraline out the wazoo.

Maybe you want to try some purple-up?