I am having a hard time getting coralline algae to grow in my tank. THe only places that it really thrives is where there is not direct light. I have a lot of dark purple where there are shadows but on top of the rocks where I really want to see coralline there is no coralline or very little. My calcium, alk
are at the right levels, calc at 450. I have a 30 gallon with 2 96 watt PC
's with 1 10,000k bulb and one 03
actinic. I dose kalk
24/7 using a DIY
system. The way I dose is have a 5 gallon container with one tube coming in that is short and another tube that gose down to the bottom. What happenes is an air pump is turned on by a float switch which pumps air into the container making the pressure higher which in turn pushes the kalk
out of the longer tube and into the tank. I recently got an order of GARF grunge about a month and a half ago and also got a new set of snails and crabs which helped a lot. I have a lot of coralline growth on the glass and I have scraped it off to seed the rock but it never helps. Please someone tell me what I can do? I want the beautiful pink and purple coralline all over my rock and not just the spots that you can't see. Thanks in advanced.