adding to sandbed

1/2 an inch at a time, mix with your fingers so the top 1/2 inch of the old mixes in with the top 1/2 inch of the new.

I would wait a week or so before repeating the process.

 

Another thing is use a cup to add it, place it as close to the bed as you can before pouring.  Do not just pour the sand in or you will get a sand fog in your tank.

 

 

I've always had good luck cutting a corner off of the bag and rinsing the sand in the bag.... then you just put the whole bag in the tank and pour it out the corner (as close to the sand bed as you can) to avoid a sand storm.

As far as mixing it with the old stuff...I wouldnt think you would want to disturb the sandbed. I always just put it on top and left it so it looks nice and clean. Only do part of the tank, no more than 1/2"- 1" at a time. I agree, wait a week or two in between to be safe.

 

I wouldn't disturb the sand bed either. The new sand will be colonized by your sand bed critters naturally.

 

pour that **** in...

 

i have added to my sand bed before. i mixed the new sand with the existing sand in the tank. i had no problems, my sand did not look dirty afterwords either. the older sand was a little discolored before, but my new skimmer recently took care of that.