Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!lsuc!ncrcan!greg From: greg@ncrcan.UUCP Newsgroups: alt.aquaria Subject: Information on filtration needed Message-ID: <539@ncrcan.Toronto.NCR.COM> Date: Mon, 7-Dec-87 13:29:44 EST Article-I.D.: ncrcan.539 Posted: Mon Dec 7 13:29:44 1987 Date-Received: Sat, 12-Dec-87 08:36:44 EST Distribution: alt Organization: NCR Canada Ltd., Mississauga, Ontario Lines: 46 Keywords: fish, tanks, water and other things terraquious (my turtle) Reply-To: I curretnly have a 75 gallon (CDN) tank. I just recently installed a new filter system using an EHIEM 2014 with the apropriate substrates in the filter to do the type of filtering that I want. My problem is this: Before switching over to this filter system, I was using the under- gravel filter with two 200 gallon per hour pumps to pump water from under the gravel bed and then through an external filter before returning the water to the tank. I still have the two powerheads installed and they now just circulate water in the tank after sucking it through the gravel in the bottom of the tank. I also have the EHIEM filter sucking water from in the tank through the filter system and then back into the top of the tank. I would like to feed the water from the EHIEM filter back through the down tubes and up through the gravel, however, I am worried about the amonia levels in the tank going sky high if I just turn the water going through the down tubes around. Question(s): Is there anything wrong or potentially hazardous with the manner in which my tank is set up now? Can I switch the water flow in the down tubes around without risk life and fin of my fish? Notes: The water in my tank is currently crystal clear, the pH level is right where it should be as well as all the other chemical levels in the tank. I've been using the EHIEM for only one week now and the tank was in perfect shape before I added the new filtering system. -- "Shit Happens!" +-------------------------------------------------------+-------------------+ | UUCP: ..!mnetor!utzoo!lsuc!ncrcan!greg | Greg Foisy | | INTERNET: Greg.Foisy@Toronto.NCR.COM | NCR Canada Ltd. | | CANPOST: 6865 Century Ave, Mississauga, Ont. L5N 2E2 | (416) 826-9000 | +-------------------------------------------------------+-------------------+