don't you guys just wash your hands and arms and reach in ? I don't wear nail polish for this reason, but my hand is in there when needed:dk:
On the other hand,my husband absolutely refuses to put his hands in my tanks when he is fish-sitting. When i went to Florida for 2 months a few yrs ago, he promised he was vacuuming , ect, but i returned to find my nitrates sky high and could see the gunk in the gravel:wb: so he fessed up , said he used the long net to pull out the leftover veggies and didn't vacuum. but he reminded me all the fish were still alive. yeah, living in their own toilet ! He is not a fishkeeper so it is understandable, but I suppose it is personal preference and fishkeepers do find other ways. Just surprised I guess.
Georgie