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[TheGrapeApe]

What is the red stuff on my love rock?

 

[willbratz]

Cyanobacteria, not good.

 

[TheGrapeApe]

The lfs said it was coralline

 

[54seaweed]

The lfs said it was coralline

Looks like coralline to me Too.....

 

[apet66]

If its like a carpet and comes off the rock when you swish your hand over it then its Cyano, if It's hard and doesn't come off with the swish test It's coraline. Cyano is caused by excess nutrients, low flow, high light. It's primary source of nutrients are phosphates.

 

[JJ-MIK]

I have red and brown everywhere... How do you get rid of it?? I suck it out and it spreads worse...

 

[jeffaquarius]

Like apet66 says it is Cyano if it comes off easily. Remove rocks and clean it with tooth brush using water from tank. No tooth paste please kd lol

 

[JJ-MIK]

I have 300 lbs of rock.. Do I really have to take it out?? Lol...

 

[apet66]

Take some flexible airline tubing and siphon it off the rocks and sand. You may loose a little sand in the process though. You can attach a long piece of rigid plastic airline tube to the end of the flexible tubing and use it as a wand. Keeps your hands out of the water.

 

[JJ-MIK]

That's a good idea! Thanks! I know with the actual gravel vac it doesn't have enough pressure to suck it all the way up. It just floats and drops back down

 

[apet66]

Your welcome. The airline tubing works perfect.