Neolamprologus Caudopunctatus

[tonedeaf]

I have a tank with Neolamprologus Caudopunctatus, which has coral sand , texas rock, plants and plants floating on the top

Recently the sand has started to get a bright green alge patch on the sand.

Is this a good sign for the tank or not so good.

 Also I was thinking of adding a mystery snail to the tank, hoping the may control it.

Any suggestions would be greatly appreciated.