View Full Version : Color fading on SPS!

05/28/2010, 11:46 PM
I have a 90 gallon sps dominate tank and i have some sps that are light in color. Every time i test for NO3 it detects 0. Can low nutrients be my problem? Elos Planet II light fixture 4 t-5 blues on from 10:30 a.m to 10:30 pm and 2x150 mh on from 12:30 p.m to 8.30 p.m Ca 430 alk 8.5 mag 1400 temp ranges between 78 to 80 s.g 1.025

05/29/2010, 10:12 AM
i know there are alot of threads on here but would just like a opinion on my situation

05/29/2010, 10:23 AM
how do your phosphates test? As I understand it, high po4 can lead to color loss and browning of corals

05/29/2010, 10:24 AM
tell us about the temperature of water that it is very important, if your tank heats you may have troubles

05/29/2010, 10:55 AM
phos are 0 on Elos Test Kit a little bit of algae in the tank not much though.

05/29/2010, 12:03 PM
phos are 0 on Elos Test Kit a little bit of algae in the tank not much though.

A bit of nitrates say around 7ppm is nothing bad. However, ANY phosphates will cause coral colours to fade/brown.

Phosphates are the main reason for nuisance algae too.

I am having the same problem in my tank. Test kits are not suitable for reading the low levels of phosphates needed. Its there, and as soon as its presend in the water anyway, algae use it up.

I have been using phosphate remover/gfo in my tank in a mesh bag and coral colours improved. However, its not enough and I may need to get a phosphate reactor.

05/31/2010, 12:30 AM
not sure if phos it the problem because i have higher phos in my 34 solana and those sps are fine.

05/31/2010, 08:23 AM
I was pulling out a lot of water when giving frags away and just adding some salt and letting the auto top off do the rest. Months later 9 year old clam died algae blooms. Sps discoloring. Turns out ro membrane was completely shot and just pumping straight water into my main... So you never know what could be the problem. You must look at everything. I have also had an issue when I painted the trim with oil based paint and the fumes where sucked in by the skimmer...