Recent Blogs Posts

I know Marc did a very extensive write-up on using a PAR meter to analyze light bulbs; however, can a PAR meter be effectively used to determine WHEN to change metal halide bulbs?

I know that we must pay attention to not only intensity of the light in the tank, but also to the color (or color shift) as the bulb ages.

My thought is to buy a PAR meter to see if I really need to change the bulbs at 6-12 months like the manufacturers suggest. I run 3 400W MHs on a sunrise/sunset ...

I am pretty sure this a macro algae. Is it good for a tank, or can it get out of control?

OK this is a new thing in my tank. I had a situation where one of my power heads moved the sand from the corner. Being slow to figure out why, I just tossed a old piece of dead coral in the spot to come back later and resolve. This morning I found a commune of turbo snails nesting in the corner. Never saw them gather at all before. Anybody else seen this?