My scrubbed tank (pics)

[Floyd R Turbo]

Get the SD card back and take a pic. You may need to change the photoperiod now that you have corrected the hotspot issue. May need to adjust proximity as well.

Let's check a few things before jumping to a conclusion though:

1) Is the change in growth effective across the entire screen, or mainly just in the area that was formerly burnt (which had started to grow green)?

2) Did you change the position of either or both of the lamps at all? Angle, proximity, etc

3) Have you change the flow rate across the screen?

4) is the brown/black algae a coating, meaning that you can gently "swipe" it away (with your hand, not a scraper) and there is green underneath? (do this in the sink, not while the scrubber is installed/running)

[greenmachine]

found an old sd card...

[greenmachine]

the pics are post cleaning today.
bud: 1.the burnt area turned brown the day after it started to get green the green area just did not grow much this week and got a much darker shade.
2.no
3.no
4.The "burnt" area has always been easy to clean,It was what I called a yellow paint skin before and now it is like a brown jelly.

Lets not forget that I DID start carbon dosing a few weeks back and I am up to a 25ml dose per day. Today I cut the dose way back to 10ml. I also tested my water last night and found the ALK to be at 14kdh!! Something tells me this is due to the vinegar dosing or at least a bad reading due to the dosing?I have been doing this a long time and use BRS 2-part and test once per week and have never had my CA&ALK out of whack before,, In any event I have decided to stop dosing any kind of carbon and just concentrate on making the scrubber work the best it can.

[SantaMonica]

After cleaning? The screen should be empty.

[Floyd R Turbo]

I agree, you definitely need to clean better. You should be able to see the canvas on at least 90% of the screen. Leave all growth in the holes.

[greenmachine]

ok i will re-clean and post more pics

[greenmachine]

ok is this clean enough? I also some pics of display and display algae

[Floyd R Turbo]

Yes, that is about how much I clean my screen. Holes are filled in very nicely, even in the area that was 'burnt'

[greenmachine]

ok how long should I let it grow now? and what should I look for as far as the burnt spot goes?

[greenmachine]

another thing that has been bothering me for a long time is the decline of my hammer coral, this was my first and oldest coral,I have had this coral for well over ten years! This coral used to grow and grow to the point where It was making it hard for me to clean the glass on one side of the tank! I think I gave over a hundred heads away over the years. About 1-2 years ago however this coral stopped growing and no longer looks so puffy. I wish I could get to the bottom of why my sps corals died about a year ago and why my only lps coral don't look so good. I will post some before pics here..