bubbles on my substrate?

[dogfart]

recently there has been a layer of bubbles developing on my sand. Water tests good not sure what the culprit is any input would be appreciated

 

[sttaylor]

Is the tank new? It may be red slime algae starting to develop.

 

[dogfart]

yeah i just moved the tank to a new locaion and upgraded to a 90 gallon over a 45. kept about 100lbs of original live rock and started a new sand bed of 120lbs of crushed coral and 40lbs of live sand. its been about 4 weeks and just started seeing bubbles all over the substrate. and my remora pro seems to be skimming nothing but clean water? collection cup set high as possible but fills with clear water in about 30 minutes. please help

 

[dogfart]

anyone?

 

[gatman13]

vacuum the tank

 

[Jpergamo]

diatoms maybe? in new tanks its common for the sand bed and rock to get some...not a whole lot...but some as it balances.

 

[dogfart]

gatman-what do you mean by vacuum the tank