I HAVE NO CORAL GROWTH!

rosieosieee

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help! ask all the questions! tell me what I'm doing wrong- I am at a complete loss. I spent an hour at work today talking with my co-workers trying to figure it out as well. Our only conclusion was my lighting.


tank: 8g nuvo

livestock: NO FISH. 3 sexy shrimp, 1 pedersons cleaner shrimp, 1 white spot anemone shrimp, 1 pom pom crab, 1 serpent star, 1 brittle star, and unfortunately my harlequin died last week.

light: nano box tide w/ bluefish controller. 12am-12pm, only on full brightness (100% blues 50% whites) from 4pm-8:20pm.

feeding: last year i was on a very strict feeding regimen of phyto daily, fuel 2x a week, reef roids 2-3x a week, and rod's food 1x a week for the acans and shrimp/inverts. for the last three months i have been tight on money and have run out of food. the tank only gets fed rod's food as of now.

filtration: sumped with a 10.7 which includes: SCA 301 skimmer, IM mini max desktop reactor with phosfiltrum (GFO made by aqua vitro), live rock, cheato, ATO, dosed with a bubble magus (only Alk at this time, Ca has been 470-500 so i haven't been dosing for the last month). gets about a 2g water change every week.

flow: upgraded return pump, and a small hydor pump for DT circulation. (i have an mp10, its too much even all the way turned down.)

the tank normally tests out as:
salinity: 1.025
nitrate: 5-10
phosphate: .03
KH: 8 (was running 10 over the summer, trying to get it back up but battling the high Ca)
Ca: 470-500 (normally 400-420)
mag: 1300-1400

tested with salifert test kits and a calibrated refractometer.

the tank has been set up for one year this month. amphipod and copepod populations are amazing, each of the lower corners are buzzing with pods. its hard not to scrape the glass daily because so many are out and about. it is a mixed reef with sps, lps, and a few mushrooms.

what do i consider no growth? zoanthid frags staying the same amount of polyps for a year straight. ricordia having two mouths but never splitting. having the same amount of euphyllia heads for 6+months.

the ONLY thing that I can see noticeable growth is my JF jack o lantern lepto. has always grown very well for me even through multiple fraggings.

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Pick up the flow. Lower the amount of light no more than 10 hrs. Bring the flow down at night. Good luck

there is so much flow in the tank that the shrimp have to stick to the rocks to not fly away!

I am upgrading to the fusion 10 soon so I'm hoping it'll be big enough to have the mp10 on again.

like I said, the lights are at 100% for a mere four hours. the rest of the time they are only at 30% blues only. I fear for my sps losing colors if I lower it more!
 
You may not be getting the growth you are looking for but I must say to keep the kinds of corals you have in that tank for a year is a achievement you should be very proud of. That's a dope little nano you have there.

thank you! I love the tank to death, and I tried to build this to the best it can possibly be for an 8g. with all the time, money, and equipment I've put into this tank its disappointing to not get the results I want.
 
just realized, that ricordia in the above picture is from a tank that I had over two years ago. as you can see, he is still tiny, and has one mouth.


-_-
 
I was thinking the same thing at first, but his nitrates and phosphates seem to be high enough for the corals to use effectively.

I'm a girl:)

and yes, I've pondered the same thing but I still consistently test nitrates and phosphates, always with traceable readings. I've considered shutting the skimmer off for 12hours but I regardless always have some nitrates.
 
Yea sorry lol. I don't know how reliable Salifert is, but maybe the test kits could be inaccurate. Only thing I can think of.
 
Yea sorry lol. I don't know how reliable Salifert is, but maybe the test kits could be inaccurate. Only thing I can think of.

I test them at my work, and we probably go through each test kit biweekly. so, my tank has probably been tested by about 100 different kits in reality haha.

salifert has a great reputation it seems.
 
I was thinking the same thing at first, but his nitrates and phosphates seem to be high enough for the corals to use effectively.

The equation for growth is more complex than just nitrates and phosphates,...there are lots of things added by fish I/we don't fully understand.
 
The equation for growth is more complex than just nitrates and phosphates,...there are lots of things added by fish I/we don't fully understand.

that may be true to a degree, but I know of many fishless systems that do not have any sort of growth problems.

including my own 6g NPS tank. only
inhabitant is a pedersons cleaner shrimp.
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

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