Brown spots

Ricky1066 · 01/28/2008, 08:30 PM

Hello I have been cycling and I think it is done all reading except nitrates are o they are still 15 for 4 days

I notice these brown patches on some rocks any idea

R.W. · 01/28/2008, 09:17 PM

diatoms, have you been running your lights?
If so, turn them off for a few days, and the diatoms will disappear. Then gradually get into the lighting regime that you want. Should get a bit of clean-up crew in there to help you out as well.

I am experiencing the same thing, but i found that all over my rocks last week and found out my lights were on too soon, and i had them on way too long in the beginning. Another reason could be the type of water you are using and if there are any extra nutrients in the water. I would consider RO/DI if you are using tap water. IMO.

fish4lyfe · 01/28/2008, 09:19 PM

yep it is indeed diatom, i have it all over my tank. its very common for new tanks like mine so im not worried

Ricky1066 · 01/28/2008, 10:14 PM

Ok well I onlyhave 1 4 foot light I leave it on for about 6 hours a day otherwise the damsel clown I have in there does not move..He actually sleep under the rock

The lfs said it was good and expected in new tanks. Butwanted to check here He said no cuc till next week

dileggi · 01/28/2008, 10:24 PM

I concur with everyone. They are diatoms and very very common in a new tank set up. Most of the tanks will go thru this and there is nothig to worry about.

Ricky1066 · 01/29/2008, 08:39 AM

I actually went to buy a cleaning crew at teh store and the guy said not yet wait a week.

So now that we are on the subject Anyone want to recomend any specific things?

cardiffgiant · 01/29/2008, 09:08 AM

Keeping the lights off for 3 days should do the trick. Very easy to do now, before you have corals to worry about.

01/28/2008, 08:30 PM	#1
Ricky1066 Registered Member Join Date: Jan 2008 Location: Brooklyn Posts: 1,029	Brown spots Hello I have been cycling and I think it is done all reading except nitrates are o they are still 15 for 4 days I notice these brown patches on some rocks any idea __________________ 75gallon,75lbslr 60pdls, clown,yellow tang.3 cardinals.royal gamma,3 chromis,blenny,torpedo,cleanershrimp Current Tank Info: 75 gallon salt water starter

01/28/2008, 09:17 PM	#2
R.W. Registered Member Join Date: Dec 2007 Location: Canada Posts: 890	diatoms, have you been running your lights? If so, turn them off for a few days, and the diatoms will disappear. Then gradually get into the lighting regime that you want. Should get a bit of clean-up crew in there to help you out as well. I am experiencing the same thing, but i found that all over my rocks last week and found out my lights were on too soon, and i had them on way too long in the beginning. Another reason could be the type of water you are using and if there are any extra nutrients in the water. I would consider RO/DI if you are using tap water. IMO. __________________ 180g FOWLR "Sun bathing on the floor next to your tank is not, in any way equivalent to spending time outdoors."

01/28/2008, 09:19 PM	#3
fish4lyfe Registered Member Join Date: Jan 2008 Location: cedar park, texas! Posts: 367	yep it is indeed diatom, i have it all over my tank. its very common for new tanks like mine so im not worried __________________ Send me pictures of your fish, or fishtanks i would love to see them! Current Tank Info: 29 gal

01/28/2008, 10:14 PM	#4
Ricky1066 Registered Member Join Date: Jan 2008 Location: Brooklyn Posts: 1,029	Ok well I onlyhave 1 4 foot light I leave it on for about 6 hours a day otherwise the damsel clown I have in there does not move..He actually sleep under the rock The lfs said it was good and expected in new tanks. Butwanted to check here He said no cuc till next week __________________ 75gallon,75lbslr 60pdls, clown,yellow tang.3 cardinals.royal gamma,3 chromis,blenny,torpedo,cleanershrimp Current Tank Info: 75 gallon salt water starter

01/28/2008, 10:24 PM	#5
dileggi Premium Member Join Date: Sep 2007 Location: S. Philly PA Posts: 1,171	I concur with everyone. They are diatoms and very very common in a new tank set up. Most of the tanks will go thru this and there is nothig to worry about. __________________ Eric "The greatest trick the Devil ever pulled, was convincing the world he didn't exist." - Usual Suspects Current Tank Info: 90g w/30g sump; skimmer; 2x175w MH & 2x super white actinic...3g w/.5g fuge 1x150w MH Viper

01/29/2008, 08:39 AM	#6
Ricky1066 Registered Member Join Date: Jan 2008 Location: Brooklyn Posts: 1,029	I actually went to buy a cleaning crew at teh store and the guy said not yet wait a week. So now that we are on the subject Anyone want to recomend any specific things? __________________ 75gallon,75lbslr 60pdls, clown,yellow tang.3 cardinals.royal gamma,3 chromis,blenny,torpedo,cleanershrimp Current Tank Info: 75 gallon salt water starter

01/29/2008, 09:08 AM	#7
cardiffgiant Registered Member Join Date: Apr 2007 Location: Tampa Posts: 3,455	Keeping the lights off for 3 days should do the trick. Very easy to do now, before you have corals to worry about.