It sounds like a tank I bought recently and took right back because the amount of chemistry would have bankrupted me for my one shot tastes. What are its dimensions? Does it have a bunch of long comb things in the inside? If it is what I think it is it has a second inner lid that keeps it light tight, and it has a very forma hold the top down and push-pull agitation thing to it. Is it about half the size of a loaf of bread and with lots of slots or indexes in it? If it is it is probably a 4X5 adustable down like Robert said -- but it is suposed to be light tight so why couldn't you drop reels in it?(posted 8776 days ago)Dean