Christian Posted December 14, 2012 Share Posted December 14, 2012 (edited) Ok I have a problem one of my tanks is green not the rocks or the glass but the water, I have done a water test it came out good, I did a 10 gallon water change with new saltwater. I don't know why is so green the water I used I put in both of my tanks. The 15 gallon is really clear where in my 30 gallon it's green. Does any one know why this is? I do have a UV staralizer but the light is currently out so I have it off but well be getting one after Christmas hopefully. But I till than what can I do. The corals a re not getting the light they need. Edited December 14, 2012 by christian Quote Link to comment Share on other sites More sharing options...
ClarkiiCircus Posted December 14, 2012 Share Posted December 14, 2012 To me it seems like a HUGE nutrient overload. A reason the parameters could turn out "ok" is because all of the algae in the water column could be absorbing the nutrients? Did you just set it up/ add new rock/ sand, etc? What kind of filtration do you have? Do you dose your tank w/ phyto or have macro in it? Quote Link to comment Share on other sites More sharing options...
Christian Posted December 14, 2012 Author Share Posted December 14, 2012 Yea it could be but I only feed the tank every other day, sometimes once very day. It's been set up for a while. Added some new corals a week ago. I'm running a 50 gallon hang on the back filter on it. All the corals are open and the fish are swimming and eating. Quote Link to comment Share on other sites More sharing options...
(Bio)³ Posted December 14, 2012 Share Posted December 14, 2012 did you dump phyto or something in there? I purposely turn one of my tanks that green once a week, and clear it up with about 3 million rotifers that are sieved out of a culture. Quote Link to comment Share on other sites More sharing options...
Christian Posted December 14, 2012 Author Share Posted December 14, 2012 Nope I did not add phyto. All I added recently was frogspawn and 2 snowflake clowns Quote Link to comment Share on other sites More sharing options...
ClarkiiCircus Posted December 14, 2012 Share Posted December 14, 2012 It looks like a huge microalgae or phyto bloom to me. Try putting a megaton of really fine filter floss in and see if it sieves out. Another guess would be that just a 50gal hob isn't good enough to keep up with the bioload...could have allowed the phosphates to get out of control causing the bloom. Quote Link to comment Share on other sites More sharing options...
HaysStanford Posted December 14, 2012 Share Posted December 14, 2012 are you using any activated carbon? Quote Link to comment Share on other sites More sharing options...
Christian Posted December 14, 2012 Author Share Posted December 14, 2012 Ok we'll my girl friend and I decided that we can get a new UV sterilizer! So that should remove it right? In like 3 hours or so? Quote Link to comment Share on other sites More sharing options...
Christian Posted December 14, 2012 Author Share Posted December 14, 2012 Yea I use carbon on both of my tanks, could carbon hurt Xenia? Quote Link to comment Share on other sites More sharing options...
ClarkiiCircus Posted December 14, 2012 Share Posted December 14, 2012 No, it wont. Not if its an algae bloom you need to find the root cause or it will literally keep happening... Quote Link to comment Share on other sites More sharing options...
HaysStanford Posted December 14, 2012 Share Posted December 14, 2012 also, one way to solve it is simply put some live rotifers in there like bio does in his culture. Just turn off your HOB filter (it really shouldnt make too big of a difference if only for a couple of days) and let the rotifers do their thing. It could actually be a good thing due to all the live food it could make for your corals and such. Quote Link to comment Share on other sites More sharing options...
HaysStanford Posted December 14, 2012 Share Posted December 14, 2012 what is the flow like in your system? Quote Link to comment Share on other sites More sharing options...
Christian Posted December 14, 2012 Author Share Posted December 14, 2012 (edited) I have two nano power heads on each side of the tank and the HOB on the top left side. Edited December 14, 2012 by christian Quote Link to comment Share on other sites More sharing options...
Christian Posted December 14, 2012 Author Share Posted December 14, 2012 I'm not sure why the pics are being posted side ways. Sorry about that. Quote Link to comment Share on other sites More sharing options...
HaysStanford Posted December 14, 2012 Share Posted December 14, 2012 If you are using power compacts and havent changed them in a while that could definitely be one of the big contributing factors. The wavelength of power compacts tends to change as they get older, causing it to feed algae more. Quote Link to comment Share on other sites More sharing options...
(Bio)³ Posted December 14, 2012 Share Posted December 14, 2012 im voting algae bloom also. I get my tanks to clear in about 1-2 days. I'd do what clarkii suggest and try a fine filter floss (polyfil for pillows from the craft store works great, the sheets or the bag polyfil.) Quote Link to comment Share on other sites More sharing options...
Christian Posted December 14, 2012 Author Share Posted December 14, 2012 Here is the specs on the tank Lighting: 4xT5HO JBJ light with 3 led moon lights Bulb order Back to front JBJ actinic Ocean sun by zoomed Marine glo by GLO JBJ daylight 50 gallon HOB by aqua clear now owned by fluval Two 500 aqueon power heads 45-50 lb of live rock Corals Show size montapora cap Frogspawn Mushrooms GSP Zoas Wisker frags Flower pot coral And a seabae anemone Fish 2X snowflakes 2X yellow prawn gobies 1X lawn mower blenny Quote Link to comment Share on other sites More sharing options...
Timfish Posted December 14, 2012 Share Posted December 14, 2012 It's pretty unusual to see green water but it is a microalgae bloom. A UV or a diatom filter (the diatom filter will actually remove the algae from the water, the UV will leave the nutrients in the system) will clear up the water but as was pointed out above you need to look at what's feeding it. Quote Link to comment Share on other sites More sharing options...
Christian Posted December 14, 2012 Author Share Posted December 14, 2012 How do I find out what's feeding it? Could it be the light? Quote Link to comment Share on other sites More sharing options...
ckyuv Posted December 14, 2012 Share Posted December 14, 2012 how old are you light bulbs? my old lights were in my tank for about 2 years and that happened, thats when i learned u replace power compacts every 6 months lol Quote Link to comment Share on other sites More sharing options...
HaysStanford Posted December 14, 2012 Share Posted December 14, 2012 Power compacts are the main type of lighting that change wavelength. Other types like T5 fluorescents tend to decrease more in PAR rather than change wavelength Quote Link to comment Share on other sites More sharing options...
Christian Posted December 14, 2012 Author Share Posted December 14, 2012 I don't have pc bulbs I have T5HO's Quote Link to comment Share on other sites More sharing options...
Christian Posted December 17, 2012 Author Share Posted December 17, 2012 Well the UV starilizer worked grate, and the water is clear! Quote Link to comment Share on other sites More sharing options...
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