Question re: back of tank - keep glass clean or not?
Attached is a pic taken Jan 1. The space between the wall and back of the tank is just enough to squuueeezze an arm back there to clean with my magfloat and Easy Scraper and is doable - though it is a pain. So, is it generally ok just to let coraline algae, etc to just grow on the back pane (or is it personal choice? As per pic, I did paint the back blue initially. I do get some (not alot) of short hair algae that my blennie munches on, but wondering if it is beneficial to just leave the back pane or should it be kept as clean as the front and side glass.
Thanks. |
All depends on your preferences. I never scrape the back wall. I used to, but was such a chore, and once it grows in, it will be consistent..
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deffinitly clean the back. For many reasons too, first off, all reefs look way hotter when clean like that. second off, I believe that you get a better light value when the light is reflected off of clean glass back into the tank then absorbed by algea. and third off which is the most important one is that if you dont clean the algea off of the back wall, you will end up having algea grow, die, grow, die, grow some more and die some more meanwhile creating unexplainable levels of nitrates.......yeah, I clean the back wall of my tank for those reasons.
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I personally don't clean it, but to each his own. It does look nice when it is clean. But I also think a tank developes character when you just leave it alone.
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Personal preference: keep it clean - the colors of the corals and fish "pop" more against a clean black background. And ultimately the whole point in having a display tank is to "display" the inhabitants optimally.
Second option: cover the back in reef ceramics of some sort giving the appearance of a reef ledge providing additional places beyond the rock work to attach corals. |
Hi Len,
I leave mine behind the rock... where no one can see it...but keep in mind that if you ever want to change your rock work, it will be harder scraping it off...totally up to you though. :wink: |
This might change your mind. The difference is much more noticeable in person.
http://www.canreef.com/vbulletin/showthread.php?t=62716 |
In my opinion never clean it.
It may look picture perfect if you do clean it but here is the downside. Many reefers take care to remove detritus from the bottom of their tanks. They also take care to stop any non-macro algae, small outcropping of cyno from growing their tanks. By leaving the back of your tank alone, tiny crabs, shrimp, pods, bacteria and many many other critters have a place to home and to eat and avoid being eaten and breed. These critters are food or provide food through their eggs and larvae to the corals and some of the smaller fish in your tank. |
leave it be, remove undesiriable algae, and encourage coraline growth. having clean back glass is horable when your trying to take pictures, give you washed out pictures unless you know how to edit them and gives you a ton of reflections in the pics. the ideal thing would be to get black glass for the back and have it etched to remove any reflective surface, you want to see colors pop.. try a black background.
Steve |
I just let mine grow wild.
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But now that I've moved everything into a shiny clean tank, I must say that I really like the clean glass. It looks great and doesn't trap detritus (the turf would catch small particles and start to look 'dusty' after a day or two). This new tank isn't sitting right against a wall, so I will scrape this one... but if you can see the wall, I wouldn't bother. Wall reflection is uglier than coralline growth, IMO. As far as using black glass, don't bother... get automotive window tint, it has a similar effect if you use a deep tint and is reasonably durable and easily removed if you get bored of it. EDIT: Oops, missed the 'etched' part about avoiding reflection. Does black glass work that way? |
i clean above my rockscape occasionally. I never do behind the rockscape. i dont do the sides either when they are not viewable.
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ya any smooth surface reflects light, although it is not as bad as the color gets darker it will still be there. I just don't know how "etched" will hold up in a marine enviorment and it will be very hard to clean but easy for coraline to get a foothold in.. all in all its not practicle, so painting, layering ect is the simplest way. Steve |
I keep all sides of the tank clean and free of coraline. IMO, looks much nicer and reflects more light. If you do it regularly it is not a big job. On the non-viewable side, I always paint the back of the glass black, some prefer blue.
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Coraline Algae is a huge CAL/ALK sucker. SO alot of people will keep it clean. so that they dont have to replace it.
PROS. the corals will get more light from the back depending on the color u use like light blue. it looks cleaner. it keeps your Coraline in check. CONS A small village for pods and creatures to live as stated. hair algae is grow to remove extra nutrients. it will look more natural in the tank like the Ocean. It will consume more ALK/CAL if its Coraline Algae. It will start to shade that portion of the tank so that some corals may not get the reflective of light to grow IE SPS. Snails can harvest off the Coraline on the back to eat At the end of the day its going to be up to you in what you want to have tin your tank. I like the clean look my self |
I let it grow pretty wild, it can get ugly, but parts are pretty cool as well. Now that it's quite grown over with coralline, I feel better about leaving it be. I have two Mandarin Dragonets in the system and as mentioned in previous posts, a well matured glass pane supplies plenty of extra food for these guys. I also have an extra little acrylic fuge just below the surface, hanging off the rim of the tank to protect & encourage the pod population. I don't even mind some hair algae on the back glass, I figure if it's there, it's less likely to establish on my rockwork, plus it takes up nitrates and I export it from time to time.
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A lot of people seam to think that you will get a benifit of reflected light, the actual usable light that is reflected is not a significant amount. take into concideration on a smooth reflective surface the light is reflected at the incident angle of what it is recived, so 90% of refleced light will hit the bottom a few inches from the glass and closer. also glass is not a 100% reflective surface by any means its transmittance can be between 85 to 95% for common glass so that means 85 to 95% of the light passes right through the glass to start with, the remaining 5 to 15% is reflected. plus the light that is reflected travels a greator distance through the water so its intensity is dropped also.
so don't clean your glass just because you think you are going to get more light. now if you made the back of the tank out of a highly reflective material with a very low transmittance it might be a differant story, but I don't know anyone making tank backs out of spectral aluminum :mrgreen: Steve |
I keep the back sparkling clean. Looks much better giving a far greater sense of depth to the tank.
Coralline is fugly. I hate the look and the fact that it sucks Ca/Alk. |
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It does take a while to get the look this way so you would want to paint the back of the tank also. I did blue befor but I would go black if I did it again. now a painted back does look nice and as you said looks bright also, but it doesn't look that natural to me. both my tanks had one end or back painted and I use a medium blue. it was like a wall of blue no depth, no variation ect.. how many things in the ocean are like that. when the coraline grew over the back of the one tank it was amazing instead of nice, the rockwork blended into the back and added a dimention to the tank the other didn't have. Steve |
I keep the front and sides clean. I like the natural look.
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i also like the natural look of the coraline, gives a tank character
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The clean back looks sterile to me, as Naesco said the growth provides shelter for a number of critters. I think the coraline algae looks wonderful on the back.
Doug |
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