bro,if it's growing, it's feeding on nitrate and light to grow.
since it's growing, you can reduce it by pruning it into a small bunch and let it grow again..
reducing nitrate consist of alot of factors (chaeto is one that aids)
if under warranty you check with the LFS you brought from see can test / exchange for you.
if not under warranty, i suspect motor up lorry and might need to get a brand new / 2nd hand
did you try to take out the impellar to wash it?
try soaking in vinegar mixed with water for half/one day.
wash it clean, then try again, if there's no response the motor might be faulty.
check also to see whether impellar/impellar holder broke
1) PH got PH test kit/meter to measure which good range is ~ 8.1 to 8.3 (am using a ph pen to measure) ph pen
2) KH i am using salifert to test which good range is (8 ~ 12dKH), alk and kh is the same test kit.
salifert kh/alk tester
The total carbonate and bicarbonate concentration is also called alkalinity (alk) or carbonate hardness (KH)
Click this link for more info
have been using LED and so far,zoas have been growing.
if possible,would recommend LED + T5. (though LED should be sufficient but sometimes it doesn't really bring out the "exact true colours",so if adding abit of T5 would be perfect).
bleach zoas never had it before and can even susbtain sps.
rics/yuma all also growing.
Suggest MH is not needed for a LPS enviroment and it's hot and makes your electricity boomz
(chiller kicking in more often e.t.c)
Testing chiller...
Less then 10 minutes to cool one pail of water for one degree.
starting to cool the pail of water from 27.5 degress to 26 @ 0024 hours.
For my record purposes
yup, invest in refractometer is a must for marine, if your hydrometer is placed to close to wavemaker, the SG will go up sometimes,then goes down..controlled by the flow too (just for those whom just started marine fyi)