Overall this week has been decent. My red mushroom coral seems to be growing well even though my dKH seems to be hovering around 13, but this just may be a faulty readings. The fish have been doing well together a little chasing the chromis around by the clown, but he doesn't disturb the chrois while eating. I had a small algae bloom along the some of the live rock, so i did about a 25% water change. Because of the water change the ammonia, nitrate, and phosphate levels all read 0 so hopefully the algae all goes away after this week. I also dropped my light control panel in the water:headwally:. So the control panel was fried and I will have to buy a new one after only just getting these lights last week. Any tips y'all have is greatly appreciated as I am still a newbie with all of this
"Filter" is the issue here.
In a properly set up tank, most of the filtration is done naturally, not via a filter. Fish poop, there's excess food, etc, and it blows around, until it gets picked up. A protein skimmer is the best way of removing it (IMO). If it doesn't get picked up (you don't have a skimmer), then it breaks down into nutrients (ammonia --> nitrite --> nitrate and phosphate), which get used by algae (nuisance or intentional algae like in algal turf scrubber). There are a lot of ways to "filter" a tank.
My problem with sponges is that if you don't clean the sponge filter thoroughly and frequently, whatever particles left in it will break down, causing the ammonia to nitrate cycle I mentioned above, and what you'll get out the other end is nuisance algae.
If you have an appropriate clean up crew, and/or siphon your sand bed (and rear chambers) when doing a water change, then you'll be removing that waste manually, without giving it much chance to break down. Also, waste that sits at the bottom of the tank is much less agitated and aerated than waste caught in a sponge, and since the bacteria that convert waste to ammonia and so on are aerobic, they will convert the waste much faster. This is a benefit in fish-only systems, where you have a lot of waste and don't care about nitrates (for the most part), but in a reef where all nutrients are "bad", you have to be much more careful. In a reef tank, it's better to have waste settle somewhere and sit silently than have it sit in a sponge and quickly converted into nitrate.
I hope that makes sense. Sorry it's so complex.
Basically, this happens due to mechanical filtration, correct? But technically, if you're diligent and frequently change or clean your mechanical filtration on a regular bases (before those trapped organic materials turn into nutrients), then you're good?
I'm asking because i'm setting up my first aquarium next week and i don't have any mechanical filtration yet. All i'll have is carbon and biological filtration. I guess i'll buy a couple of different mechanical filtration to experiment with and cycle on a weekly bases.
Mechanical filtration is a lot of work to maintain, and the only reason I can understand people using it is to keep their sump (or rear chambers in our tanks) clean so they don't have to siphon those. Otherwise, there isn't much benefit IMO.
by the way, I grew up in Astoria; I absolutely love how live 30th ave is now! :beer:
If you're ordering stuff anyway, I'd highly recommend picking up a piece of rigid tubing that fits into/with your normal water change tubing so you can siphon the bottom of the sump easily. You can test how much by shining a flashlight down from the top and seeing how much is back there. Even with filtration media, you'll still end up getting some back there, so you'll probably have to (or want to) siphon anyway.