Hi Joey,
A
diatom bloom is a normal part of a new tank. It is an indicator of high Nitrates and/or Phosphates. What are you using for source water? Reverse osmosis/deionized water is your best, though fairly expensive to purchase a RO/DI unit, it will save you money and headaches in the long run. If not available to you now, at least get a Tap Water Purifier, an inexpensive de-ionizer unit that plugs onto your faucet. You can sometimes get RO water from your LFS or supermarket, though this can get expensive over time.
Besides water quality,
protein skimming and kalkwasser dripping will help your water quality and combat the diatoms. They will go away eventually with good husbandry. Good circulation is also important so that there are no dead spots in the tank. You can blow some of them off the rocks with a turkey baster.
Here is a site with links to articles about diatoms, though I do not advocate the use of additives or chemicals as suggested by some of the authors:
http://saltaquarium.miningco.com/pet...m&TopNode=3770
Please tell us more about your tank; water parameters, equipment, etc.
HTH
Dick
