Is this film normal?
- Thread starter Deep Reef
- Start date
gemini aquarius(t)
Always Learning
Pretty normal from what I can in the pic. How old is the tank?
Deep Reef
Active member
Tank Is 1-1/2 yrs old. It is like a calcium deposit white and hard to remove. I have never seen this before. Today alk was 6.7, mag 1300, Calc 440. Alk was added as I'm still trying to bring the alk up to 8.8. Looks like my 2 acans are on their way out, ricordias are shrinking , nothing appears to be coming back. It appears I will have a fowler soon 
DRThompson
2018 FMAS President
Have you been dosing Lanthanum?
gemini aquarius(t)
Always Learning
What else can you tell us about the tank? I would stop dosing vinegar for sure. Reef tanks will balance themselves, this is something I have seen time and time again, it just doesn't happen as quickly as us reefers want so we try to tweak things to speed process up. What are your nitrates at currently?
gemini aquarius(t)
Always Learning
5 is plenty low enough for what youre keeping. I keep mine permanently at 5-15. Not on purpose, but thats where it stays and I haven't seen a negative effect from those levels. I even have montis doing great at that level.
What is your stock of corals? or pictures of what everything is looking like?
What is your stock of corals? or pictures of what everything is looking like?
Deep Reef
Active member
I think I got to the bottom of the film. as i was hand dosing every morning to get my dosing numbers in allign i was putting calc, mag and alk in one right after each other. It wasn't till i was doing some added research i saw that they recommended 20 to 30 minutes between the alk and calc dosing so maybe this was causing the precipitation on the glass as it has gone away no that i set up the automatic dosing with a time separation.
gemini aquarius(t)
Always Learning
AHHHH! That is almost certainly what was causing it. If you can, dose them at different parts of the day. or one in the sump and one in display. How are the corals doing? What kind of corals do you have?
