By Request - green tank pics

[DJ88]

IMO putting an animal in there to eat up the green stuff isn't the way to do it. That is treating the symptoms not the cause. Until the cause is found that has introduced all the nutrients into Alans system, he will continue to have problems down the road. Whether it was due to water, rock or whatever. The nutrients are in there. Until the source is removed, 'band-aid' approaches are going to be moot.

As an aside I highly doubt a LFS will 'loan' a gorg or clam to try the theory out.