diatom problem please help

ok heres the thing I have a 150 gallon tank everything was fine in this tank then I bought about 100 lbs of live rock from a guy that was breaking his tank down and a couple days later I noticed brown diatom algae everywhere would this rock have caused this?

 

Nope just part of the deal. Cut back lights. Add about 12 turbo, areas, merit and about 10 days will be gone

 

your tank is cycling so don't worry

 

um...your tank is new and is the process of new tanks..whenever u introduced the new rocks, there was some silicates u added to your system..whenever all the silicates are used up the diatoms will go away..

have u added any new pieces of equipment..anything plastic or acrylic u add to your tank will cause a little diatom bloom

 

Algae problems are usually caused by aquarium water with excess nutrients like phosphate, nitrates etc. In the long term you may have to examine how you care for your tank. There are some commercial dry foods also contain excess nutrients and other undesirable things like nitrates, phosphates etc so I strain/rinse my fresh/frozen foods before feeding my tank. You may want to consider feeding your fish less often. Also using RO/DI water and a high quality salt with little if any NO3, phosphates etc like Tropic Marin will really help too. Adding a phosphate remover, increasing flow in your tank, adjusting your tank's photo period or replacing old bulbs may help too

 

my tank has been up for over 2 years I have the ro/di water system and I feed my fish about every 2 to 3 days I have metal halide that I run about 6 hours a day however all my snails have all died out but a few of them I have one of the rapids pro filter system and I checked the nitrates they are about 15

 

It'll go away on its own, likely it was from adding the rock.