20 Gallon tank update

[fatboy8]

Still running my 20 gallon tank and overhauled it a bit. Current stock includes
1x clownfish
1x Yellow tail damsel
1x Tiger goby
2x Nassarius snail
1x Emerald crab

Surprisingly the damsel and clownfish keep there distance and I haven't seen any aggression between the two or any damage to either. Quick question though. I'm getting the like black/reddish stuff all over my substrate is there anything to combat this?

 

[Cu455]

The red/black stuff is cyano bacteria. It will pass in time. A powerhead and good water quality will help. There are a million threads about it and cures for it.

 

[Westie]

I'm a diver and damsels are just as mean in the ocean as they are in a tank. Little punks lol.

 

[fatboy8]

The red/black stuff is cyano bacteria. It will pass in time. A powerhead and good water quality will help. There are a million threads about it and cures for it.

Thanks for the help picked up a 528 gph powerhead to help circulate the tank