HighlandReefer
Team RC
Thanks for you input regarding your use of AF.
Sorry to hear about your loss.
Sorry to hear about your loss.

Also i am going out with my family by closing our home for 10 days. What steps can be taken to avoid any untoward incident? We cant give our home keys to anybody.
The maroon color sounds like this may be cyanobacteria. Pictures would help.
If you can't let anyone in to oversee your tank for 10 days, the biggest concern is if the electric went off and stopped your system. Not feeding for 10 days, should not be a big concern for most healthy fish. Your alk level can drop quite a bit in 10 days if it is not automated. It is not unusual for tanks to use 1 dKH per day and a drop of 10 dKH would be bad.
Looks like cyanobacteria to me.
Okay.
You mentioned that your tank is subject to natural sun light. If so, you may want to shade the tank with curtains or something.
Not direct sun light only window light.
Keep removing the cyano and clean the sand bed as well. Run GAC & GFO. Scrubbing the rock regularly will help.
Okay thanks, but how do i clean the sand beds as the algae is stuck badly in the sand like ruined hair. I scrub rocks every fortnight, more than that my wife wont allow to do it:sad1:
Here are the pics :
Here are the pics :