Brown gravel

[fishdude]

I bought some white gravel about 6 months ago. I know white is a mistake. Almost all of it turned brown. The blue gravel i bought is turning brown a little too. I've cycled my tank. I have a zipper loach, a molly, 2 platies, a gourami, and a tetra. I just did a water change. I have coral in there too. Is it the coral?

 

[Lithril]

Have you tried vacuuming the gravel well?? When I clean the gravel on my 10 gal I actually push the vacuum into it slightly so it starts to get sucked up then lift it up till it drops, you may find this helps.

 

[Dubby]

It is probably due to algae. Cleaning the gravel should help. Also increasing light can help.... not too much else it will all turn green instead

 

[ginamoore]

i would say your lighting is bad causeing a brown alge. you shoud be getting green alge not brown. my lighting went bad in my saltwater tank and it did the same thing but as soon as i changed the lights it went away.

 

[fishdude]

Well i light my tank about 10 hours a day. I've had regular algae. But i think i should clean the gravel more. It shows on the side of the tank to. Thanks for the help.

 

[Lithril]

Add a bristlenose pleco (ancistrus) they only grow to a max of 5" long, they're amazing algae eaters.

 

[bgraber]

Diatoms? Look them up on google..