Derasa how quick will they grow

Afish4u · 06-14-2006, 09:52 PM

Basically I'm looking at a 2" or so clam how quick will they tend to grow under pc lighting?

Casey · 06-14-2006, 09:58 PM

You will have to feed them live phyto pc lights are not great for clams
they are the lowest par you can get and I have had only average health,color and growth under them,my t5s and vho Mh do much better.
You need to keep the calcium up around 450ish for growth.

Loverotties · 06-15-2006, 07:15 AM

Dito of what Casey said!All is very important!

Wiskey · 06-15-2006, 03:56 PM

The reason PC gets such a bad rap is that 99.9% of the fixtures out there with PC bulbs have 100% worthless reflectors.

I had a derassa growing like wildfire in a 15 gallon tank with 2*55W PC, but I had AH-Supply parabolic reflectors that gave me 3X the light output then a normal fixture when measured with my light meter.

Get a clam that is at least 3 inches IMHO, they have a better shot at survival and you don't need to worry about feeding so much.

HTH,
Whiskey