Is your Ca reactor not producing enough

[Chin_Lee]

Will
I use the reactor to maintain the levels. I use the supplements to get it to the level I want then just use the reactor to maintain the alk/cal at that level.

Also i am going to start changing my ARM media every 3-4 months if I can afford it. I noticed a growth spurt right after I changed the previous 7 month old media.

Originally Posted by Willito

It's been about 2 weeks now since I've incresed the effluent (to almost a steady stream) and bubble count to see if that would help. I measured the levels 5 days ago and found the hardness has gone up to 7dkh, but calcium is still around 300ppm. Megnesium at 1290ppm. I decided to leave that the way it is and have been adding Seachem Advanced Calcium for 4 consecuitive days. My calcium is now at 400ppm. Today I did a 20% water change (haven't done one in a couple months) in hopes that will boost up the hardness a little more to maybe 8-9dkh and leave the rest to the reactor to do. I think part of my problem was not changing the water often enought. I going to test the water again in a week to see if the levels hold, if notk, I will just have to add a Kalkreactor. SPS are darn calcium hogs.

[Willito]

Originally Posted by Chin_Lee

Also i am going to start changing my ARM media every 3-4 months if I can afford it. I noticed a growth spurt right after I changed the previous 7 month old media.

Do you mean replacing all the media or just partial? What is the reasoning behind this? My results are the opposite, whenever I change the media (partial) I find that it take a upto a month for thing to be back to normal. Hence I often just add more media on top to avoid any kind of growth slowdowns.

[Jaws]

I was hoping I could revive this thread and check on your progress. I've got a 180G tank stocked fairly heavily with sps. I've got a dual stage Ca reactor and would like to maintain calcium levels of around 400 and Alk around 10. I'm still trying to figure out how much flow to allow, how many bubbles per minute and what pH level should be coming out of the second chamber. Any suggestions?