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I'd try to get your mag down a bit. When my mag was above 1400 I never had any coralline growth. Does your t5 have reflectors? What's your lighting schedule?Having same issues in my 75gal reef. System is 8mths old...no coralline growth, LPS seem to be fine, SPS slowly lose polyps over several weeks time, some zoas look good others don't fully open and slowly shrink up and disappear. All fish look great
Parameters Alk=9, Ca=420, Mg=1500, PH 8.1-8.2, Salinity 35-36ppm, Temp 77
Bi-Weekly 30% water changes, refugium with Chaeto
Lighting is 2 kessil 160WE and 4 T5 (ATI bulbs, 2 Actinic, 1 Blue Plus and 1 Coral Plus)
Dose BRS 2 part 72ml daily and use Kalk in ATO.
GFO/Carbon reactor
Reef Octopus 150 Skimmer
MP40 and two PP15 for flow (all 3 set at about 40%)
Yes t5 is a retro kit with reflectors. I do not dose Mg so not sure how to get it down aside from stopping water changes.I'd try to get your mag down a bit. When my mag was above 1400 I never had any coralline growth. Does your t5 have reflectors? What's your lighting schedule?
Having same issues in my 75gal reef. System is 8mths old...no coralline growth, LPS seem to be fine, SPS slowly lose polyps over several weeks time, some zoas look good others don't fully open and slowly shrink up and disappear. All fish look great
Parameters Alk=9, Ca=420, Mg=1500, PH 8.1-8.2, Salinity 35-36ppm, Temp 77
Bi-Weekly 30% water changes, refugium with Chaeto
Lighting is 2 kessil 160WE and 4 T5 (ATI bulbs, 2 Actinic, 1 Blue Plus and 1 Coral Plus)
Dose BRS 2 part 72ml daily and use Kalk in ATO.
GFO/Carbon reactor
Reef Octopus 150 Skimmer
MP40 and two PP15 for flow (all 3 set at about 40%)
NH4=0, PO4=0ppm, NO3 fluctuates between 20 and 60ppm between water changes.What are your nutrient levels?
When cycle do you have any algea growing.Do you have any algea growing now?What are the values of nitrate and phosphste now?Here are some better lit pictures
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Try to adjustHi All
As the title says, I can't seem to get anything to grow. I've had a RSR 250 for over a year, which was an upgrade from a 36G tank (which I've had for 2 years prior). I wasn't too successful on getting stuff to grow in the 36G either, but at least I was able to get coralline to grow.
With my RSR 250, all the corals that I put in are either staying the same size (duncans, frogspawn), or slowly withering away (daisy coral, torches, zoas, monti's, leptos). I have stable parameters, decent lighting, good flow, and good skimming. Again, with the 250, coralline doesn't grow, everything is kinda just grey.
I have a couple of inhabitants, a pair of Clownfish, a Royal Gramma, a Yellow Watchman Goby, a Pistol Shrimp, and a couple of hermit crabs. I feed 1/2 a Hikari cube of brine a day, and drop in a couple pinches of pellets.
I am at a total loss as to why my tank is doing so bad. I would very grateful for any advice. Thanks
Here's info on my tank
55G RSR 250
2 Kessil 160's (10hr period, intensity ramps from 10-60%, peak intensity = 4hrs)
Reef Octopus Classic 110INT
GHL Doser 2 (2ml Rea Sea NoPox, 72ml Alk., 72ml Calc per day)
Red Sea Energy 2x a week
My water parameters are good, I've ICP-tested the tank water and the RODI going in
RODI
- Zero for everything except Silicon. Not sure if that's a problem
Tank Water
- Basic parameters good; Alk = 7.24, Mg = 1316, Calcium = 400.6, Nitrate = 0.01, Phosphate = 0.02
Other elements I'm not sure of...
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Try to play with your Alk, mine was over 10 for almost two years with any luck in growth, after I lowered to 8 my growth it's great, on the other side my friend can see any growth in 8 he needs to be over 10,5 to 11, good luck.Hi All
As the title says, I can't seem to get anything to grow. I've had a RSR 250 for over a year, which was an upgrade from a 36G tank (which I've had for 2 years prior). I wasn't too successful on getting stuff to grow in the 36G either, but at least I was able to get coralline to grow.
With my RSR 250, all the corals that I put in are either staying the same size (duncans, frogspawn), or slowly withering away (daisy coral, torches, zoas, monti's, leptos). I have stable parameters, decent lighting, good flow, and good skimming. Again, with the 250, coralline doesn't grow, everything is kinda just grey.
I have a couple of inhabitants, a pair of Clownfish, a Royal Gramma, a Yellow Watchman Goby, a Pistol Shrimp, and a couple of hermit crabs. I feed 1/2 a Hikari cube of brine a day, and drop in a couple pinches of pellets.
I am at a total loss as to why my tank is doing so bad. I would very grateful for any advice. Thanks
Here's info on my tank
55G RSR 250
2 Kessil 160's (10hr period, intensity ramps from 10-60%, peak intensity = 4hrs)
Reef Octopus Classic 110INT
GHL Doser 2 (2ml Rea Sea NoPox, 72ml Alk., 72ml Calc per day)
Red Sea Energy 2x a week
My water parameters are good, I've ICP-tested the tank water and the RODI going in
RODI
- Zero for everything except Silicon. Not sure if that's a problem
Tank Water
- Basic parameters good; Alk = 7.24, Mg = 1316, Calcium = 400.6, Nitrate = 0.01, Phosphate = 0.02
Other elements I'm not sure of...
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I would run your 160's at 100% the whole time. I have 5 over my 92gal and run them all at 100% for the 14 hours they are on. First and last hour the color is 100% blue, then the rest of the day there at about 75% white/ 25% blue.
No idea on par values, 100% for intensity the whole 13 hours the lights are on and around 50% for color the majority of the day, with the dial to all blue the first and last hour, a few times a week i put the color at about 75% to 100% white for a few hours a day, doing it this way for the last couple years seems to work for me. Absolutely no scientific data for the way I do it, the corals just seem to respond nicely so I just keep doing what works.HB AL do you know your par values at the 100%? Are you saying 100% for both color and intensity?
What salt do you use, and have you tried a different mg test kit? Last year I had a bunk mg kit and it wasn't even close to being expired. Also still wondering what your light schedule might be?Yes t5 is a retro kit with reflectors. I do not dose Mg so not sure how to get it down aside from stopping water changes.
What salt do you use, and have you tried a different mg test kit? Last year I had a bunk mg kit and it wasn't even close to being expired. Also still wondering what your light schedule might be?
You use the same salt as me.I use Red Sea Coral Pro salt and use Red Sea Pro Multi Test kit for Mg and Ca and a Hannah Alk Checker. I use API kts for NH4, PO4 and NO3.
Lighting schedule is Kessils on at 7am off at 10pm. They ramp slowly to 30%/30% peaking at about 2pm. Actinics come on at 9am and off at 9pm, coral+/blue+ come on at 11am and off at 7pm.

