Proper Lighting

FitoPharmer · #1 09-17-2008, 02:16 AM

really happy sps like: 25-45x water turnover, high light, stable water parameters low on everything accept a little bit of nitrate( up to 10ppm otherwise), RO/DI water, routine water changes, good filter system, lots of small food and live phyto, and supplements i find really help colors (lots on the market).

cdhollan · #2 09-17-2008, 03:54 AM

Thanks for your help, and yeah I was thinking of switching to like a 14k bulb or 15k bulb, is there one you would reccommend? And if I do this should I also switch the actinics, right now they are in the form of PCs. My flow is really high, parameters are stable, only thing is I dont have any form of filtration besides the live rock. I have never had the need to get a skimmer or anything. Is this part of the problem?

FitoPharmer · #3 09-17-2008, 05:41 AM

how often do you test your important perameters: salinity, ph, alk, calc? and what are they? if you have a sump, adding filter socks to the sump, a protein skimmer, or going macro algae will all help out. also how often and how much water do you change? as for the best bulb, try and get the brand that matches your ballast if you can. if not you can look for bulb recommendations for your ballast. its really hard to say. the same bulb will burn different depending on your ballast. sometime you just have to try if you cant find any recommendations and you have a non standard type ballast. they will always be around the color temperature they are supposed to, if your not sure go a little high to be safe i.e. 15k instead of 14k. and yes, if you can t5 actinics will look better then pc's but is not needed.

cdhollan · #4 09-17-2008, 02:39 PM

I am not sure what type of ballast I have or even how I would find out what type I have. It was just a no- name metal halide fixture. I do not have a sump either on my tank so it really limits me to the type of filtration I can have. I do water changes weekly and will have to retest my parameters because I am not sure off hand. I know my nitrates and nitrates and ammonia are all 0. Do you know a brand name bulb that makes a 15k halide?

mseepman · #5 09-17-2008, 03:35 PM

Pheonix makes a 14k bulb that is very popular. If you do switch, your supplimental lighting will become more important...PC's don't put out as much light as T5HO and cost more to replace bulbs. Color choices are also a little less varied in PC. If you plan to keep them and move to a higher k MH, then just make sure you regularly replace the PC's.

cdhollan · #6 09-17-2008, 04:33 PM

what type of bulb or color should i get with the T5HO, just looking at some websites and there is so many to choice from. I would like a bluer looking one.

wickedfrags · #7 09-17-2008, 05:32 PM

If you want vibrant colour, I would recommend a 20K bulb. I have used XM and Radium with good results. A 250W halide on a 30G would provide ample light.

Also remember many people feel water quality is number one when in comes to SPS colour, closely followed by lighting and then water movement. Stability is very important, and ofter times difficult to acheive in such a small system. I would try and do your best to avoid temperature fluctuation as well, perhaps see if you can get a used temperature controller for your heater(s).