Thanks for the info Greg,
I will definately look into the RODI.
I know that space will be an issue for the water tank cause I have 2 young kiddies that may like to play in it if it is found...
I guess I've been lucky up until now with the brown algea, I was waiting for it to bloom about 3 weeks ago. I do have 2 large buckets that we use for the water changes, I will see if I can get another one and use that to store some water.
Scary, I guess it is off to the next level...

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55 gallon corner tank, 2 clowns, Blue tang, Christmas wrasse, Blue spotted Hawaiin puffer, Red spotted blennie, Sand sifting Starfish, and 4 snails.
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Nikki