Sounds good for water flow although you might want to get one more ph for the other side of the tank to keep from getting any dead spots. Floating is typically from sand particals from sand not being rinsed but bacterial blooms will also float. If you're not running your skimmer or wet dry unit yet I would.
Do you have a built in overflow or HOB
? How much lr
do you have in lbs currently? What type of lighting? Is this going to be fowlr
or are you planning for reef?
It should clear within the next week or two at the most. It's fairly common and nothing to worry about either. You can also scoop then up using a fine mesh net to help it clear up.
p.s. Check your inbox
for the PM I sent you