Many fish thought of as algae eaters are very messy and can actually make the problem worse by adding to the bioload of the tank. Shown here is one night’s worth of ‘output’ from a ‘common pleco’

Many fish thought of as algae eaters are very messy and can actually make the problem worse by adding to the bioload of the tank. Shown here is one night's worth of 'output' from a 'common pleco'

Many fish thought of as algae eaters are very messy and can actually make the problem worse by adding to the bioload of the tank. Shown here is one night’s worth of ‘output’ from a ‘common pleco’

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