Bell siphons are used in aquaponic systems to create rising and falling water levels in plant culture beds that facilitates water exchanges and elevates dissolved oxygen (DO) although this may also remove nutrient rich organic debris from the plant culture bed. Sweet banana chili pepper (Capsicum annuum) plants were aquaponically grown until maturity and then further cultured in a media-filled bed with or without a bell siphon for one month in triplicate. Water quality was measured throughout as well as the total chili number, weight, mineral composition and sugar levels. Channel catfish (30 individuals/replicate; initial weight = 289 g ± 10.2) were fed twice/day for 5 days/week. Results showed that a bell siphon significantly increased DO in both the fish and plant culture tanks, but dissolved nitrogen and pH were similar. Fish growth, survival and feeding efficiency were similar among treatments. The total count (982 and 747) and weight of chilies (7450 and 7413 g) were similar without or with a bell siphon, but individually, chilies were significantly heavier with a bell siphon. Soluble and insoluble sugars were unaffected but among the tested minerals, sodium, potassium, calcium and zinc were significantly elevated in chilies cultured without a bell siphon. The lower mineral content was likely due to the bell siphon removing excess organic debris from the media-filled plant culture bed that would otherwise be mineralized. Based on these findings and under the culture conditions, bell siphons may not provide benefits to plant production and the lower DO may be mitigated by providing additional aeration in the plant culture bed.

钟形虹吸管用于鱼菜共生系统，以在植物培养床中产生上升和下降的水位，促进水交换并提高溶解氧 (DO)，尽管这也可能从植物培养床中去除富含营养的有机碎片。甜香蕉辣椒 ( Capsicum annuum) 植物以鱼菜共生方式生长至成熟，然后在有或没有钟形虹吸管的充满培养基的床上进一步培养一个月，一式三份。整个水质以及辣椒的总数量、重量、矿物质成分和糖含量都得到了测量。斑点鲶鱼（30 个体/复制；初始重量 = 289 g ± 10.2）每天喂食两次，每周喂食 5 天。结果表明，钟形虹吸管显着增加了鱼类和植物培养箱中的溶解氧，但溶解氮和 pH 值相似。鱼的生长、存活率和摄食效率在处理之间是相似的。辣椒的总数（982 和 747）和辣椒重量（7450 和 7413 克）在没有或有钟形虹吸管的情况下相似，但单独地，辣椒在有钟形虹吸管的情况下明显更重。可溶性和不溶性糖不受影响，但在测试的矿物质中，钠、钾、钙和锌在没有钟形虹吸管培养的辣椒中显着升高。较低的矿物质含量可能是由于钟形虹吸管从充满培养基的植物培养床上去除了多余的有机碎片，否则这些碎片会被矿化。基于这些发现和在培养条件下，钟形虹吸管可能不会为植物生产带来好处，并且可以通过在植物培养床中提供额外的曝气来缓解较低的溶解氧。