Sand starting to turn brown

[crystalz]

blue spotted gobies are good sifters and tend to stay quite small.(approx 3"). I had one in a 30 gal @ one time. upgraded the tank and then the goby.

[marcingo]

Thanks. I will definitely look into it.

[Kryten]

You could also try a strawberry conch. I have 2 in my 24 gal and they do a pretty good job.

[marcingo]

would a conch be ok with my puffer? I mean my shrimps and big snails and hermits are ok. But conch are soft bodied arent they?

[Kryten]

Conches have a hard shell and they're a fair size I would think it would be ok.