reef lighting

OK i love my newdual 250watt 20k metal halide setup on my reef tank but the
brown algae that grew with my pc's grow ten times faster now.How to i limit
its production?more snails????
Thanks

This is a bloom, and it occured because of your transition from PC to MH. It
will pass soon, just hang in there.

My 55g is going through a transition from VHO to MH + VHO (330w to 570w)
currently, and I've been ramping up the time the MH are on every couple of
days. After about 2 weeks or so, the lights will be on for the full duration.
So far, I seem to have avoided an algae bloom.

You can add more snails if you like, but realize when the bloom is gone, your
snails could go hungry. Try siphoning off what you don't like, clean your glass
daily, and be sure your sand is being stirred with hermits or a Fighting Conch.

Marc


Mooboy wrote:

OK i love my newdual 250watt 20k metal halide setup on my reef tank but the
brown algae that grew with my pc's grow ten times faster now.How to i limit
its production?more snails????
Thanks

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Marine Hobbyist: http://www.melevsreef.com

Im pretty sure your referring to Diatoms, they feed from Silicate present in
the water...

Test your tank and the water you use (for changes) for Silicates present...
if you use a good RODI water it should be free from Silicates otherwise you
are just replacing the algaes food source every time you do a waterchange!

In my new tanks i just leave the lights on with rock and pumps and skimmer..
No livestock or corals and let it kill itself by growing all over and it
then uses up its food source and dies...

Something like that anyway

W


"Mooboy" wrote in message ...
OK i love my newdual 250watt 20k metal halide setup on my reef tank but
the
brown algae that grew with my pc's grow ten times faster now.How to i
limit
its production?more snails????
Thanks