- Location
- New York, NY
I started a Nuvo 20 several months back. Mixed Reef with soft corals, some SPS and some LPS.
I have around 20 different kinds of zoas all were doing great and growing quickly. Example had a 2 polyp Utter chaos within 6-8 weeks now 8 polyps.
Last couple weeks some colonies closed up, have had some die off, some have gotten smaller and some the heads are mis-shaped and look unhappy, unresponsive to touch etc.
I started using Kalk on July 1st, have never used it in 17+ years I've kept reefs, always used 2 part. I started very low dose and have been raising it slowly since July and sometimes supplementing 2 part during the week as well when I test. I am up to around 1 tsp per gallon in the ATO as of now, which loses around .25 DKH a day. There definitely have been ALk swings throughout the week since I started but usually slowly goes down during the week whereas 9.5DKH after a water change might be 8 a week later.
Other than that salinity 1.26, some carbon, ghost skimmer. I change around 5 gallons a week as its a newer tank, might go down to 3 or 4 gallons / week after tank reaches 6-8 months. 2 clownfish and a clown goby, no pests, no amphipods in the tank, no nudi's, spiders, etc. lighting AI prime (not HD) 80% power on 20K. I started the tank at 60% and raised to 80% of last 3-4 months. Out of the 20 something colonies most are zoos, some are paly's. the issues are with both.
I can't seem to figure out whats wrong, have kept reef tanks on and off for many years.
Any suggestions?
I have around 20 different kinds of zoas all were doing great and growing quickly. Example had a 2 polyp Utter chaos within 6-8 weeks now 8 polyps.
Last couple weeks some colonies closed up, have had some die off, some have gotten smaller and some the heads are mis-shaped and look unhappy, unresponsive to touch etc.
I started using Kalk on July 1st, have never used it in 17+ years I've kept reefs, always used 2 part. I started very low dose and have been raising it slowly since July and sometimes supplementing 2 part during the week as well when I test. I am up to around 1 tsp per gallon in the ATO as of now, which loses around .25 DKH a day. There definitely have been ALk swings throughout the week since I started but usually slowly goes down during the week whereas 9.5DKH after a water change might be 8 a week later.
Other than that salinity 1.26, some carbon, ghost skimmer. I change around 5 gallons a week as its a newer tank, might go down to 3 or 4 gallons / week after tank reaches 6-8 months. 2 clownfish and a clown goby, no pests, no amphipods in the tank, no nudi's, spiders, etc. lighting AI prime (not HD) 80% power on 20K. I started the tank at 60% and raised to 80% of last 3-4 months. Out of the 20 something colonies most are zoos, some are paly's. the issues are with both.
I can't seem to figure out whats wrong, have kept reef tanks on and off for many years.
Any suggestions?