Cycling Filter

I'm currently cycling my tank and at first all of the sand clouded up the water when I put the water in a few weeks ago, the filter quickly cleaned it in about 2 hours making it crystal clear, but I don't know if that harmed the filter cartridge at all? I have a 12 pack of the filters so it's not a problem, but I want to know if it'll ruin the cycling process.

Should I change the filter cartridge at all during the cycling process even with all that sand in there?

Also, I just got two blue legged hermit crabs, should that be enough to clean the algae off of my sand in a 10G?

cav said:

What is in your filter? Why are you using it on a marine tank? Is it an external or internal?

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I was told on here it'd be okay to use on a small tank. It's a 30g filter on a 10g tank. It's an overhang filter.

cav said:

What are you using in the filter? How much live rock do you have? Have you got a powerhead in the tank?

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The carbon/sponge/ammonia remover 3 step in the hagen aquaclear filters.

15lbs of live rock

Hydor Nano Powerhead